Verified Fitment Starter Motor Compatible with Bobcat 6670727

Cross-Reference Verified — Starter motor 6670727 (cross-reference only) fitment mapped across 14+ superseded and alternate numbers for Bobcat compact excavators and loaders.

Technical Specifications

Application Suitability

Why the Same Reference Number Ships in Multiple Variants

Starter Motor 6670727 for Bobcat E45 E50 Excavator fitment requires serial-range confirmation, not just a part number match.

A single OEM reference can cover machines built across several years, and within that span the flywheel housing, terminal position, or solenoid connector may change without the reference number updating. Buyers ordering from a catalog line alone risk receiving a unit that physically bolts on but will not engage or connect. I once had a customer order based on a number that matched his Bobcat E35 on paper, only to find the pinion tooth count differed on his specific serial range — the starter jammed against the ring gear during a test crank [NEED_CITE: starter motor variant identification across compact excavator serial ranges].

Fitment Range and Serial Verification

This starter motor is listed as compatible with Bobcat 325 through 341 and the E25 through E55 range, plus the S100 skid steer loader. That breadth means a single reference can span machines with different engine blocks and bell housings. Before confirming an order, we cross-check the machine serial prefix against the fitment table to isolate which production batch the unit belongs to. A Starter Motor 6670727 for Bobcat E45 E50 Excavator fitment confirmation often comes down to whether the machine left the factory before or after a running design change in the electrical harness.

Interface Check Points Before You Commit

The physical interfaces that determine whether this unit drops in are the mounting flange bolt pattern, the pinion tooth count and module, the terminal stud orientation relative to the solenoid, and the connector type on the excitation wire. We verify all four against your machine's existing starter or the factory service data. A 10-tooth CW pinion must match the ring gear exactly — even one tooth difference prevents engagement. The solenoid connector on E-series machines has shifted between spade and pin types across model years, and plugging the wrong type means rewiring on site [NEED_CITE: compact excavator electrical connector standardisation across model generations].

Reading the Specifications Against Your Operating Conditions

The 12 V / 2.2 kW rating places this starter in the typical range for compact diesel engines up to roughly four litres displacement. A 2.2 kW output provides adequate cranking torque for cold starts in temperate climates, though machines operating in sustained sub-zero environments may benefit from confirming battery capacity and cable gauge are matched to the draw. CW rotation is standard for the engine orientation in Bobcat compact excavators; reversing rotation would indicate a fitment error or an incorrect cross-reference. The 10-tooth pinion is sized for the ring gear module used on these platforms — substituting a different tooth count, even if the starter physically fits the bore, will result in partial engagement and accelerated gear wear. Compliance with SAE J1171 covers marine-grade ignition protection, relevant if the machine operates near water or in enclosed spaces where fuel vapour accumulation is possible [NEED_CITE: SAE J1171 ignition protection requirements for mobile equipment starters].

The Cost of a Fitment Miss

A starter that arrives and does not fit means the machine stays down while a replacement ships. For a contractor with a trench open or a concrete pour scheduled, that idle time compounds quickly. Even a unit that bolts on but has the wrong pinion engagement depth will grind the ring gear teeth, turning a simple starter swap into a flywheel replacement. Returning a mismatched unit across borders adds freight and customs delays on top of the original downtime [NEED_CITE: equipment downtime cost factors for compact excavator fleet operations].

Why Source This Starter Motor Through Our Desk

We keep cross-reference data that covers superseded numbers like SND0408 and 228000-6921 alongside the current reference, so an older machine with a legacy label still gets matched correctly. Our technical team verifies serial-range fitment from a photograph of your nameplate or old unit when the part number is unreadable. A sample unit ships for trial fitment before you commit to a fleet order, eliminating the risk of bulk mismatch. Selected lines are produced in our own facility while others are sourced from ISO 9001-certified partners — both carry the same warranty terms. We hold stock in Guangzhou for common references, and the MOQ is one piece for urgent single-machine repairs.

Documentation & Verification

• Commercial invoice and packing list with 6670727 (reference only) and machine model noted
• Cross-reference sheet listing SND0408, 228000-6921 and derivative numbers for identification
• Dimensional inspection record covering flange pattern, pinion tooth count and terminal position
• Warranty terms sheet covering manufacturing defects for 3–12 months
• Packing photographs showing protective wrapping and terminal cap placement
• HS code and export documentation support for destination-country customs clearance

Fitment Check Before Installation

• Compare the mounting flange bolt pattern on the new starter against the removed unit before wiring
• Verify 10-tooth pinion engages the ring gear by hand-rotating the drive before energising
• Confirm solenoid connector type matches the machine harness — spade versus pin — to avoid rewiring
• Check terminal stud orientation matches the existing positive cable reach and routing
• Test-crank with the fuel system disabled to confirm rotation and engagement before full start
• If any interface mismatch is found, halt installation and contact us with photographs for resolution

Requesting a Fitment Confirmation

Send us your machine model, serial number, or a clear photograph of the old starter's nameplate and connector. We will return a verified cross-reference match and confirm which variant applies to your serial range. For fleet orders, provide the model list and we supply a consolidated fitment table.

Frequently Asked Questions

Q: How do I confirm this starter fits my specific Bobcat serial range? A: Provide the machine model and the serial number from the identification plate. We cross-check the prefix against our fitment table, which accounts for running production changes in terminal position, connector type, and flange pattern. If the plate is unreadable, a photograph of the old starter and its connector is sufficient for us to verify the correct variant.

Q: My old part number differs from 6670727 — is it still the same unit? A: Multiple reference numbers including SND0408, 228000-6921, 228000-6920, and 410-52186 map to the same starter family across different production periods. Send us your old number and we will confirm whether it falls within the verified interchange group. A physical match also depends on your machine serial range, which we check before confirming.

Q: Why do multiple reference numbers exist for one starter motor? A: Equipment manufacturers and component suppliers each assign their own tracking numbers. When a design revision occurs — such as a connector change or a supplier switch — a new number may be issued while the physical fitment remains identical or near-identical. Our cross-reference table consolidates these so you can order with confidence regardless of which label is on your old unit.

Q: I only have the machine model, not the part number — can you match it? A: Yes. Tell us the machine model and serial prefix and we identify the correct starter from the fitment database. If the serial plate is missing or painted over, a photograph of the engine block casting number or the old starter housing helps narrow the match. We confirm pinion tooth count, rotation, and connector type before shipping.

Q: Can I order one sample to verify fit before a larger order? A: Our minimum order is one piece, specifically to support sample fitment. Install the sample on one machine, confirm engagement, rotation, and connector match, then release the balance of your order. This approach eliminates the risk of a fleet-wide mismatch and is standard practice for buyers managing mixed-serial fleets.