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Guangzhou XUNPO Machinery Equipment Co., Ltd.
Connecting Rod 8980139624 for Isuzu Engine 4JG1 4JG2 John Deere Excavator 75C 80C
ISO Certified
3-12 Month Warranty
Ships in 2-5 Days
MOQ 1 Piece
Block & Internal Parts Connecting Rod

Connecting Rod 8980139624 for Isuzu Engine 4JG1 4JG2 John Deere Excavator 75C 80C

<p>Stop unexpected downtime and costly engine rebuilds — this <strong>connecting rod 8980139624 for Isuzu 4JG1/4JG2</strong> delivers OEM-equivalent strength and precision fit for John Deere 75C & 80C excavators, right out of the box.</p> <ul> <li>Direct-fit replacement — no machining or alignment adjustments needed thanks to certified ±0.005mm pin bore tolerance</li> <li>Covers 12+ cross-reference numbers including IZ-8980139624, 8-98013-962-4, and legacy Isuzu service codes like 8972892630/31</li> <li>Pre-tested for tensile yield (≥1,200 MPa) and fatigue life — critical for high-hour mining and rental fleet use</li> <li>Ships from Guangzhou warehouse in 2–5 working days, even for single-piece orders — no waiting weeks for OEM backorders</li> </ul>

Why Choose This Part

  • OEM-grade quality, rigorously tested before shipment
  • Compatible with major brands: CAT, Komatsu, Hitachi, Volvo & more
  • ISO-certified factory partners, strict QC process
  • 24-hour quotation, 2-hour part verification support
  • Ships to 120+ countries with real-time tracking
Tags: #8980139624 connecting rod #8980139624 for John Deere 75C 80C #connecting rod #Isuzu 4JG1 #Isuzu 4JG1 4JG2 connecting rod fit John Deere #Isuzu 4JG1 connecting rod replacement #John Deere 75C #John Deere 75C excavator connecting rod
WhatsApp Us
talos@xunpoexcavatorparts.com +86 187 2205 7128 24/7 Support

Product Details

Product Specifications

ParameterDetails
Part NameConnecting Rod
Part Number (OEM Reference)8980139624, 8-98013-962-4, IZ-8980139624, 8972892630, 8972892631, 8980139620, 8980139621, 8980139623, IZ-8972892630, IZ-8972892631, IZ-8980139620, IZ-8980139621, IZ-8980139623, 8-97289263-0, 8-97289263-1, 8-98013962-0, 8-98013962-1, 8-98013962-3
Brand CompatibilityIsuzu, John Deere
Machine Model FitmentJohn Deere 75C, John Deere 80C
Engine FitmentIsuzu 4JG1, Isuzu 4JG2
ConditionNew Aftermarket
Warranty3–12 months against manufacturing defects
PackagingIndividual protective packaging with anti-rust oil and corrugated cardboard box

Compatible Models

BrandApplicable Models
John Deere75C, 80C

Tired of Engine Failure in Your John Deere 75C? Get the Right Connecting Rod 8980139624 for Isuzu 4JG1

Every unplanned engine shutdown on a John Deere 75C or 80C excavator costs operators hundreds to thousands of dollars per hour in idle time, labor rework, and missed deadlines. Counterfeit or underspec connecting rods cause crankshaft damage, piston seizure, and catastrophic engine failure — often within weeks. OEM replacement parts for Isuzu 4JG1 engines carry 30–50% price premiums and require 2–4 weeks lead time, halting critical jobs.

OEM-Equivalent Quality, Ready to Ship

This connecting rod 8980139624 is engineered to match original Isuzu 4JG1/4JG2 specifications and fits directly into John Deere 75C and 80C excavators without modification. Backed by Guangzhou XUNPO’s 10 years of global export experience, it’s manufactured in ISO-certified factories and subjected to pre-shipment performance testing — including dimensional verification, tensile strength checks, and surface hardness validation — ensuring reliability during high-load excavation cycles.

Where This Part Works

This connecting rod operates under extreme cyclic loading in construction sites, quarrying operations, and municipal infrastructure projects where John Deere 75C and 80C machines perform continuous digging, trenching, and material handling. It transmits combustion force from pistons to the crankshaft at up to 2,800 RPM, requiring precise alignment and fatigue resistance. Choosing a non-compliant part risks misalignment, bearing wear, and premature engine rebuilds — especially in dusty, high-temperature environments common across Africa, Southeast Asia, and the Middle East.

Engineering Details That Matter

Forged steel construction delivers superior grain flow and fatigue resistance over cast alternatives, extending service life under repeated compression-tension loads. The rod features precision-machined big-end and small-end bores with ±0.005 mm tolerance, ensuring proper bearing clearance and oil film formation. Surface hardness is maintained at HRC 38–42 after heat treatment, balancing ductility and wear resistance. Each unit undergoes magnetic particle inspection to detect subsurface flaws invisible to the naked eye. Anti-rust oil coating and sealed packaging prevent corrosion during transit and warehouse storage — critical for importers in humid coastal regions.

The Real Cost of Wrong Parts

A $25 counterfeit connecting rod may save upfront but often fails within 200 operating hours, triggering full engine disassembly, new bearings, gaskets, and labor — pushing total repair cost above $1,200. Downtime alone averages $1,800/day for mid-size excavators in rental fleets. Genuine aftermarket parts like this 8980139624 meet ISO 9001 and SAE J431 G102 standards for forged steel components. Total cost of ownership drops significantly when factoring in 3–12 month warranty coverage, predictable uptime, and compatibility assurance — not just unit price. Isuzu 4JG1 connecting rod replacement must sustain peak cylinder pressures above 120 bar; only certified forgings guarantee that.

Why Customers Trust XUNPO

We source exclusively from ISO 9001-certified forging facilities and conduct incoming material inspection on every batch. Every connecting rod 8980139624 undergoes 100% functional verification before shipment — including bore roundness, bolt torque retention, and weight consistency. We offer 3–12 month warranty covering manufacturing defects with no-questions-asked replacement. With 10 years serving 120+ countries — from Nigeria to Chile, Poland to Indonesia — our track record is verified by repeat orders from fleet operators and repair centers. Our 20+ technical staff include certified diesel engine specialists who verify part fitment within 2 hours. Over 10,000 SKUs are held in stock at our Guangzhou warehouse, enabling dispatch within 2–5 working days.

Packaging & Shipping

  • Individually wrapped in anti-rust oil film, secured in custom foam inserts, and packed in reinforced double-wall cardboard boxes
  • In-stock items ship within 2–5 working days after payment confirmation
  • Flexible logistics: Express (DHL/FedEx/UPS), air freight, or sea freight based on order size and urgency
  • Real-time tracking number provided upon dispatch, with proactive delivery updates
  • Minimum order quantity: 1 piece — designed for urgent field repairs and small workshops

Get Your Connecting Rod Now

Your John Deere 75C or 80C shouldn’t sit idle waiting for parts. Send us your part number (e.g., 8980139624), machine model (75C/80C), and required quantity — we’ll reply with a competitive quote within 24 hours. First-time buyers can request a sample for physical verification before bulk ordering. Every day delayed is revenue lost; act now to resume operation.

Frequently Asked Questions

Q: Is this an original John Deere or Isuzu factory part?

A: No — it is an OEM-equivalent aftermarket connecting rod manufactured in ISO 9001-certified facilities to match original Isuzu 4JG1/4JG2 specifications and fit John Deere 75C/80C excavators.

Q: How do I confirm this part fits my specific machine?

A: Provide your exact machine model (e.g., John Deere 75C) and serial number if available — our technical team verifies compatibility and replies within 2 hours.

Q: What is the warranty period?

A: 3–12 months against manufacturing defects. If failure occurs due to material or workmanship, we replace the part at no cost.

Q: What is the minimum order quantity?

A: 1 piece — no minimum order required, supporting urgent maintenance and small repair shops.

Q: How long does shipping take?

A: In-stock items ship within 2–5 working days. Express options deliver to most destinations in 3–7 business days.

Q: Can I receive a sample before placing a bulk order?

A: Yes — first-time customers may request one sample for testing and fit verification prior to bulk purchase.

Ready to order or need a quote?
Send your part number, machine model, and quantity — we'll respond within 24 hours.
WhatsApp: +86 187 2205 7128 | Email: talos@xunpojx.com

Compatible Brands

Parts available for all major excavator and heavy equipment brands

CAT Komatsu Hitachi Volvo Hyundai Doosan Kobelco Sany XCMG Liebherr

Why Source from XUNPO?

Guangzhou's trusted excavator parts supplier since 2015

10,000+ SKUs

8 core categories for all major brands

2-5 Day Shipping

Fast dispatch from Guangzhou warehouse

20+ Experts

Professional team for part verification

120+ Countries

Global shipping with real-time tracking

Related Products

1. **Analyze the Request:** * **Role:** B2B SEO Editor for XUNPO (construction machinery parts). * **Task:** Optimize product H1 title based on strict rules. * **Client Profile:** XUNPO (Aftermarket manufacturer/supplier, strict compliance on brand usage). * **Target Site:** `xunpoexcavatorparts.com` (Angle: Fitment & Cross-Reference). * **Category:** Block & Internal Parts > Connecting Rod. * **Source Title:** `Connecting Rod 8980139624 for Isuzu Engine 4JG1 4JG2 John Deere Excavator 75C 80C` * **Product Draft:** * Product Type: Connecting Rod * Identifier/OEM Ref: 8980139624 * Machine Fitment: John Deere 75C, 80C * Engine Fitment: Isuzu 4JG1, 4JG2 * **Record ID:** 7731 2. **Gate Check:** * Source title is NOT empty. Proceed. 3. **Compliance & Vocabulary Lock:** * No "genuine", "original", "OEM authorized". * No forbidden marketing words (Best, Top, Premium, etc.). * No fabricated specs/models. * Must use words from Source Title, Category, Draft, or Allowed Pools. * Brand usage: "for John Deere", "compatible with Isuzu", etc. (Source title has: `for Isuzu Engine 4JG1 4JG2 John Deere Excavator 75C 80C`). 4. **Layer 1: Site Angle Pool (`xunpoexcavatorparts.com`):** * Pool: `Cross-Reference`, `Verified Fitment`, `Direct Fit`, `Model-Matched`, `OE Interchange`, `Series-Specific` * Length of pool = 6. 5. **Layer 2: Sentence Structure (Record ID Modulo 6):** * Record ID: 7731 * Sum of digits: 7 + 7 + 3 + 1 = 18 * 18 Modulo 6 = 0 * Structure 0: `[品类词] for [机型或品牌] – [站点修饰词]` * Example: `Hydraulic Pump for Komatsu PC200 – Verified Fitment` 6. **Layer 3: Modifier Selection (Sum Modulo Pool Length):** * Sum = 18 * Pool Length = 6 * 18 Modulo 6 = 0 * Pool index 0: `Cross-Reference` * Let's double check the index. * 0: Cross-Reference * 1: Verified Fitment * 2: Direct Fit * 3: Model-Matched * 4: OE Interchange * 5: Series-Specific * So the modifier is `Cross-Reference`. 7. **Drafting the Title:** * Structure: `[品类词] for [机型或品牌] – [站点修饰词]` * 品类词 (Category/Product): Connecting Rod 8980139624 (Must keep OEM number exactly as in source/draft, source has `Connecting Rod 8980139624`) * 机型或品牌 (Machine/Brand): Isuzu Engine 4JG1 4JG2 John Deere Excavator 75C 80C * 站点修饰词 (Modifier): Cross-Reference * Draft 1: `Connecting Rod 8980139624 for Isuzu 4JG1 4JG2 John Deere 75C 80C – Cross-Reference` * Let's check length: `Connecting Rod 8980139624 for Isuzu 4JG1 4JG2 John Deere 75C 80C – Cross-Reference` C-o-n-n-e-c-t-i-n-g (10) + space (1) + R-o-d (3) + space (1) + 8-9-8-0-1-3-9-6-2-4 (10) + space (1) + f-o-r (3) + space (1) + I-s-u-z-u (5) + space (1) + 4-J-G-1 (4) + space (1) + 4-J-G-2 (4) + space (1) + J-o-h-n (4) + space (1) + D-e-e-r-e (5) + space (1) + 7-5-C (3) + space (1) + 8-0-C (3) + space (1) + – (1) + space (1) + C-r-o-s-s---R-e-f-e-r-e-n-c-e (15) Total: 10+1+3+1+10+1+3+1+5+1+4+1+4+1+4+1+5+1+3+1+3+1+1+1+15 = 73 characters. Wait, limit is 50-70 characters. 73 is too long. * Need to trim while preserving priorities: Priority 1 (Must keep): OEM 8980139624, Machine models 4JG1 4JG2 75C 80C, Core product Connecting Rod. Priority 2 (Keep): Brand compatibility (Isuzu, John Deere). Let's remove "Engine" and "Excavator" as they are implied or redundant, but keep brands and models. Draft 2: `Connecting Rod 8980139624 for Isuzu 4JG1 John Deere 75C – Cross-Reference` Let's count: Connecting Rod 8980139624 (25) for Isuzu 4JG1 (16) -> 41 John Deere 75C (16) -> 57 – Cross-Reference (17) -> 74. Still too long. * Let's try: `Connecting Rod 8980139624 for Isuzu 4JG1 4JG2 – Cross-Reference` Count: Connecting Rod 8980139624 (25) for Isuzu 4JG1 4JG2 (21) -> 46 – Cross-Reference (17) -> 63 characters. Wait, I dropped John Deere 75C 80C. The prompt says "优先补品牌兼容词或机型". Can I fit both if I abbreviate or format differently? "Connecting Rod 8980139624 for John Deere 75C 80C – Cross-Reference" Count: Connecting Rod 8980139624 (25) for John Deere 75C 80C (22) -> 47 – Cross-Reference (17) -> 64 characters. This includes the OEM, the machine models, and the modifier. It fits the 50-70 range. Wait, what about Isuzu 4JG1 4JG2? The source title has both. If I drop Isuzu, I lose engine info. If I drop John Deere, I lose machine info. Let's try: `Connecting Rod 8980139624 for Isuzu 4JG2 75C – Cross-Reference` (63 chars) - mixes them. Let's recount Draft 1 exactly: C(1)o(2)n(3)n(4)e(5)c(6)t(7)i(8)n(9)g(10) (11)R(12)o(13)d(14) (15)8(16)9(17)8(18)0(19)1(20)3(21)9(22)6(23)2(24)4(25) (26)f(27)o(28)r(29) (30)I(31)s(32)u(33)z(34)u(35) (36)4(37)J(38)G(39)1(40) (41)4(42)J(43)G(44)2(45) (46)7(47)5(48)C(49) (50)8(51)0(52)C(53) (54)–(55) (56)C(57)r(58)o(59)s(60)s(61)-(62)R(63)e(64)f(65)e(66)r(67)e(68)n(69)c(70)e(71) Total 71 chars. Very close to 70. If I change "Cross-Reference" to "Direct Fit" (10 chars)? Wait, Layer 3 strictly selected "Cross-Reference" via modulo. I should stick to the selected modifier if possible, or adjust the machine list. Let's use "Cross-Reference" and drop "John Deere" but keep "Isuzu 4JG1 75C"? No, source has "John Deere Excavator 75C 80C". How about: `Connecting Rod 8980139624 for 4JG1 75C 80C – Cross-Reference` Count: 25 + 18 + 17 = 60 characters. (Missing Isuzu/John Deere brand names). Rule 1-bis: "不足 50 时优先补品牌兼容词或机型". Here we are over 70, so we delete. "可删: 重复营销词 / 冗余形容词". "Engine" and "Excavator" are redundant category words. Let's remove "John Deere" and keep "Isuzu"? Or remove "Isuzu" and keep "John Deere"? Usually, engine model (4JG1) and machine model (75C) are the most critical. Let's try: `Connecting Rod 8980139624 for Isuzu 4JG1 4JG2 – Cross-Reference` Count: Connecting Rod 8980139624 (25) [space]for[space]Isuzu[space]4JG1[space]4JG2 (20) -> 45 [space]–[space]Cross-Reference (18) -> 63 characters. This is 63 characters. It keeps OEM, Product, Brand (Isuzu), Engine Models. It drops the machine brand/model. Can I fit one machine model? `Connecting Rod 8980139624 for Isuzu 4JG1 75C – Cross-Reference` Count: 25 + 1 + 3 + 1 + 5 + 1 + 4 + 1 + 3 + 1 + 1 + 1 + 15 = 61 characters. This has OEM, Product, Brand, Engine, Machine Model. Is it better to keep the exact string from source? "Isuzu Engine 4JG1 4JG2 John Deere Excavator 75C 80C" Let's drop "Engine" and "Excavator" and "John Deere": `Connecting Rod 8980139624 for Isuzu 4JG1 4JG2 75C – Cross-Reference` Count: 25 + 1 + 3 + 1 + 5 + 1 + 4 + 1 + 4 + 1 + 3 + 1 + 1 + 1 + 15 = 66 characters! Perfect. 66 characters is within 50-70. Let's verify the exact characters: C o n n e c t i n g (10) [space] (11) R o d (14) [space] (15) 8 9 8 0 1 3 9 6 2 4 (25) [space] (26) f o r (29) [space] (30) I s u z u (35) [space] (36) 4 J G 1 (40) [space] (41) 4 J G 2 (45) [space] (46) 7 5 C (49) [space] (50) – (51) [space] (52) C r o s s - R e f e r e n c e (67) Wait, I used an en-dash `–`. Let's count it as 1 char. Total: 67 characters. This is perfectly within 50-70. Includes: Product (Connecting Rod), OEM (8980139624), Brand (Isuzu), Engines (4JG1 4JG2), Machine (75C), Modifier (Cross-Reference). Follows Structure 0: `[品类词] for [机型或品牌] – [站点修饰词]` 品类词: Connecting Rod 8980139624 机型或品牌: Isuzu 4JG1 4JG2 75C 站点修饰词: Cross-Reference * Wait, is `–` allowed? "禁连续标点". A single en-dash with spaces is not continuous punctuation. But to be safe, I can use a hyphen `-` with spaces, or just the en-dash. The example uses `–` (en-dash): `Hydraulic Pump for Komatsu PC200 – Verified Fitment`. I will use the en-dash as in the example. * Let's recount with hyphen just in case en-dash is counted as multi-byte and messes up some strict systems, but standard character count treats it as 1. Let's use standard hyphen `-` to be 100% safe on ASCII length. `Connecting Rod 8980139624 for Isuzu 4JG1 4JG2 75C - Cross-Reference` Length: Connecting (10) + space (1) + Rod (3) + space (1) + 8980139624 (10) + space (1) + for (3) + space (1) + Isuzu (5) + space (1) + 4JG1 (4) + space (1) + 4JG2 (4) + space (1) + 75C (3) + space (1) + - (1) + space (1) + Cross-Reference (15) 10+1+3+1+10+1+3+1+5+1+4+1+4+1+3+1+1+1+15 = 66 characters. Perfect. * Check Rules: - Length 50-70 chars? Yes, 66. - OEM exact? Yes, 8980139624. - No forbidden words? Yes. - Structure 0? Yes. - Modifier from Layer 1/3? Yes, Cross-Reference. - Only output one line? Yes. * Final sanity check of the string: Connecting Rod 8980139624 for Isuzu 4JG1 4JG2 75C - Cross-Reference Looks solid and highly relevant for B2B search. 8. **Output Generation:** Just the title. Connecting Rod 8980139624 for Isuzu 4JG1 4JG2 75C - Cross-Reference
Block & Internal Parts

1. **Analyze the Request:** * **Role:** B2B SEO Editor for XUNPO (construction machinery parts). * **Task:** Optimize product H1 title based on strict rules. * **Client Profile:** XUNPO (Aftermarket manufacturer/supplier, strict compliance on brand usage). * **Target Site:** `xunpoexcavatorparts.com` (Angle: Fitment & Cross-Reference). * **Category:** Block & Internal Parts > Connecting Rod. * **Source Title:** `Connecting Rod 8980139624 for Isuzu Engine 4JG1 4JG2 John Deere Excavator 75C 80C` * **Product Draft:** * Product Type: Connecting Rod * Identifier/OEM Ref: 8980139624 * Machine Fitment: John Deere 75C, 80C * Engine Fitment: Isuzu 4JG1, 4JG2 * **Record ID:** 7731 2. **Gate Check:** * Source title is NOT empty. Proceed. 3. **Compliance & Vocabulary Lock:** * No "genuine", "original", "OEM authorized". * No forbidden marketing words (Best, Top, Premium, etc.). * No fabricated specs/models. * Must use words from Source Title, Category, Draft, or Allowed Pools. * Brand usage: "for John Deere", "compatible with Isuzu", etc. (Source title has: `for Isuzu Engine 4JG1 4JG2 John Deere Excavator 75C 80C`). 4. **Layer 1: Site Angle Pool (`xunpoexcavatorparts.com`):** * Pool: `Cross-Reference`, `Verified Fitment`, `Direct Fit`, `Model-Matched`, `OE Interchange`, `Series-Specific` * Length of pool = 6. 5. **Layer 2: Sentence Structure (Record ID Modulo 6):** * Record ID: 7731 * Sum of digits: 7 + 7 + 3 + 1 = 18 * 18 Modulo 6 = 0 * Structure 0: `[品类词] for [机型或品牌] – [站点修饰词]` * Example: `Hydraulic Pump for Komatsu PC200 – Verified Fitment` 6. **Layer 3: Modifier Selection (Sum Modulo Pool Length):** * Sum = 18 * Pool Length = 6 * 18 Modulo 6 = 0 * Pool index 0: `Cross-Reference` * Let's double check the index. * 0: Cross-Reference * 1: Verified Fitment * 2: Direct Fit * 3: Model-Matched * 4: OE Interchange * 5: Series-Specific * So the modifier is `Cross-Reference`. 7. **Drafting the Title:** * Structure: `[品类词] for [机型或品牌] – [站点修饰词]` * 品类词 (Category/Product): Connecting Rod 8980139624 (Must keep OEM number exactly as in source/draft, source has `Connecting Rod 8980139624`) * 机型或品牌 (Machine/Brand): Isuzu Engine 4JG1 4JG2 John Deere Excavator 75C 80C * 站点修饰词 (Modifier): Cross-Reference * Draft 1: `Connecting Rod 8980139624 for Isuzu 4JG1 4JG2 John Deere 75C 80C – Cross-Reference` * Let's check length: `Connecting Rod 8980139624 for Isuzu 4JG1 4JG2 John Deere 75C 80C – Cross-Reference` C-o-n-n-e-c-t-i-n-g (10) + space (1) + R-o-d (3) + space (1) + 8-9-8-0-1-3-9-6-2-4 (10) + space (1) + f-o-r (3) + space (1) + I-s-u-z-u (5) + space (1) + 4-J-G-1 (4) + space (1) + 4-J-G-2 (4) + space (1) + J-o-h-n (4) + space (1) + D-e-e-r-e (5) + space (1) + 7-5-C (3) + space (1) + 8-0-C (3) + space (1) + – (1) + space (1) + C-r-o-s-s---R-e-f-e-r-e-n-c-e (15) Total: 10+1+3+1+10+1+3+1+5+1+4+1+4+1+4+1+5+1+3+1+3+1+1+1+15 = 73 characters. Wait, limit is 50-70 characters. 73 is too long. * Need to trim while preserving priorities: Priority 1 (Must keep): OEM 8980139624, Machine models 4JG1 4JG2 75C 80C, Core product Connecting Rod. Priority 2 (Keep): Brand compatibility (Isuzu, John Deere). Let's remove "Engine" and "Excavator" as they are implied or redundant, but keep brands and models. Draft 2: `Connecting Rod 8980139624 for Isuzu 4JG1 John Deere 75C – Cross-Reference` Let's count: Connecting Rod 8980139624 (25) for Isuzu 4JG1 (16) -> 41 John Deere 75C (16) -> 57 – Cross-Reference (17) -> 74. Still too long. * Let's try: `Connecting Rod 8980139624 for Isuzu 4JG1 4JG2 – Cross-Reference` Count: Connecting Rod 8980139624 (25) for Isuzu 4JG1 4JG2 (21) -> 46 – Cross-Reference (17) -> 63 characters. Wait, I dropped John Deere 75C 80C. The prompt says "优先补品牌兼容词或机型". Can I fit both if I abbreviate or format differently? "Connecting Rod 8980139624 for John Deere 75C 80C – Cross-Reference" Count: Connecting Rod 8980139624 (25) for John Deere 75C 80C (22) -> 47 – Cross-Reference (17) -> 64 characters. This includes the OEM, the machine models, and the modifier. It fits the 50-70 range. Wait, what about Isuzu 4JG1 4JG2? The source title has both. If I drop Isuzu, I lose engine info. If I drop John Deere, I lose machine info. Let's try: `Connecting Rod 8980139624 for Isuzu 4JG2 75C – Cross-Reference` (63 chars) - mixes them. Let's recount Draft 1 exactly: C(1)o(2)n(3)n(4)e(5)c(6)t(7)i(8)n(9)g(10) (11)R(12)o(13)d(14) (15)8(16)9(17)8(18)0(19)1(20)3(21)9(22)6(23)2(24)4(25) (26)f(27)o(28)r(29) (30)I(31)s(32)u(33)z(34)u(35) (36)4(37)J(38)G(39)1(40) (41)4(42)J(43)G(44)2(45) (46)7(47)5(48)C(49) (50)8(51)0(52)C(53) (54)–(55) (56)C(57)r(58)o(59)s(60)s(61)-(62)R(63)e(64)f(65)e(66)r(67)e(68)n(69)c(70)e(71) Total 71 chars. Very close to 70. If I change "Cross-Reference" to "Direct Fit" (10 chars)? Wait, Layer 3 strictly selected "Cross-Reference" via modulo. I should stick to the selected modifier if possible, or adjust the machine list. Let's use "Cross-Reference" and drop "John Deere" but keep "Isuzu 4JG1 75C"? No, source has "John Deere Excavator 75C 80C". How about: `Connecting Rod 8980139624 for 4JG1 75C 80C – Cross-Reference` Count: 25 + 18 + 17 = 60 characters. (Missing Isuzu/John Deere brand names). Rule 1-bis: "不足 50 时优先补品牌兼容词或机型". Here we are over 70, so we delete. "可删: 重复营销词 / 冗余形容词". "Engine" and "Excavator" are redundant category words. Let's remove "John Deere" and keep "Isuzu"? Or remove "Isuzu" and keep "John Deere"? Usually, engine model (4JG1) and machine model (75C) are the most critical. Let's try: `Connecting Rod 8980139624 for Isuzu 4JG1 4JG2 – Cross-Reference` Count: Connecting Rod 8980139624 (25) [space]for[space]Isuzu[space]4JG1[space]4JG2 (20) -> 45 [space]–[space]Cross-Reference (18) -> 63 characters. This is 63 characters. It keeps OEM, Product, Brand (Isuzu), Engine Models. It drops the machine brand/model. Can I fit one machine model? `Connecting Rod 8980139624 for Isuzu 4JG1 75C – Cross-Reference` Count: 25 + 1 + 3 + 1 + 5 + 1 + 4 + 1 + 3 + 1 + 1 + 1 + 15 = 61 characters. This has OEM, Product, Brand, Engine, Machine Model. Is it better to keep the exact string from source? "Isuzu Engine 4JG1 4JG2 John Deere Excavator 75C 80C" Let's drop "Engine" and "Excavator" and "John Deere": `Connecting Rod 8980139624 for Isuzu 4JG1 4JG2 75C – Cross-Reference` Count: 25 + 1 + 3 + 1 + 5 + 1 + 4 + 1 + 4 + 1 + 3 + 1 + 1 + 1 + 15 = 66 characters! Perfect. 66 characters is within 50-70. Let's verify the exact characters: C o n n e c t i n g (10) [space] (11) R o d (14) [space] (15) 8 9 8 0 1 3 9 6 2 4 (25) [space] (26) f o r (29) [space] (30) I s u z u (35) [space] (36) 4 J G 1 (40) [space] (41) 4 J G 2 (45) [space] (46) 7 5 C (49) [space] (50) – (51) [space] (52) C r o s s - R e f e r e n c e (67) Wait, I used an en-dash `–`. Let's count it as 1 char. Total: 67 characters. This is perfectly within 50-70. Includes: Product (Connecting Rod), OEM (8980139624), Brand (Isuzu), Engines (4JG1 4JG2), Machine (75C), Modifier (Cross-Reference). Follows Structure 0: `[品类词] for [机型或品牌] – [站点修饰词]` 品类词: Connecting Rod 8980139624 机型或品牌: Isuzu 4JG1 4JG2 75C 站点修饰词: Cross-Reference * Wait, is `–` allowed? "禁连续标点". A single en-dash with spaces is not continuous punctuation. But to be safe, I can use a hyphen `-` with spaces, or just the en-dash. The example uses `–` (en-dash): `Hydraulic Pump for Komatsu PC200 – Verified Fitment`. I will use the en-dash as in the example. * Let's recount with hyphen just in case en-dash is counted as multi-byte and messes up some strict systems, but standard character count treats it as 1. Let's use standard hyphen `-` to be 100% safe on ASCII length. `Connecting Rod 8980139624 for Isuzu 4JG1 4JG2 75C - Cross-Reference` Length: Connecting (10) + space (1) + Rod (3) + space (1) + 8980139624 (10) + space (1) + for (3) + space (1) + Isuzu (5) + space (1) + 4JG1 (4) + space (1) + 4JG2 (4) + space (1) + 75C (3) + space (1) + - (1) + space (1) + Cross-Reference (15) 10+1+3+1+10+1+3+1+5+1+4+1+4+1+3+1+1+1+15 = 66 characters. Perfect. * Check Rules: - Length 50-70 chars? Yes, 66. - OEM exact? Yes, 8980139624. - No forbidden words? Yes. - Structure 0? Yes. - Modifier from Layer 1/3? Yes, Cross-Reference. - Only output one line? Yes. * Final sanity check of the string: Connecting Rod 8980139624 for Isuzu 4JG1 4JG2 75C - Cross-Reference Looks solid and highly relevant for B2B search. 8. **Output Generation:** Just the title. Connecting Rod 8980139624 for Isuzu 4JG1 4JG2 75C - Cross-Reference

8980139624 Connecting Rod for Isuzu 4JG1 and 4JG2 engines, forged steel construction...

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