4 Pieces Fuel Injector 1J770-53050 1J770-53070 1J770-53074 1J770-53051 295050-1980 for Kubota Engine V3307-CR-TE4 V3307 Tier 4

Product Specifications

Compatible Models

Tired of Engine Misfires and Power Loss? Get the Right Kubota Fuel Injectors for Your V3307-CR-TE4 Excavator

Every hour your Kubota excavator sits idle due to inconsistent fuel delivery costs hundreds — sometimes thousands — of dollars in lost productivity. Counterfeit or mismatched injectors cause rough idling, black smoke, and premature engine wear. OEM replacements often take 3–4 weeks to arrive, halting critical jobs on site.

OEM-Equivalent Quality, Ready to Ship

These Kubota fuel injectors are manufactured in ISO 9001-certified facilities and undergo pre-shipment performance testing for flow rate, spray pattern, and opening pressure — matching OEM specifications within ±2%. With 10 years of global export experience and 10,000+ SKUs in stock, we supply verified replacement fuel injectors for Kubota V3307 Tier 4 engines used in excavation, loading, and grading operations — no guesswork, no delays.

Where This Part Works

This 4-piece fuel injector set operates under high-pressure common-rail conditions (up to 160 MPa) in Tier 4-compliant Kubota V3307-CR-TE4 engines. It powers compact excavators like the KX080-4 on urban construction sites, skid steers like the SSV75 on landscaping projects, and compact track loaders like the SVL75-2 in confined quarry and demolition zones — where precise fuel metering directly affects throttle response, emissions compliance, and cold-start reliability.

Engineering Details That Matter

Each injector features hardened stainless steel nozzle tips with micro-precision orifices (±1 µm tolerance), ensuring consistent atomization across all four cylinders. The solenoid valve uses high-temp polyimide insulation rated to 180°C, preventing coil failure during extended high-load operation. Sealing surfaces are lapped to Ra ≤ 0.2 µm finish, eliminating leakage at rail pressures above 140 MPa. All internal components meet ISO 4406:2017 cleanliness Class 16/14/11 standards — critical for protecting sensitive CRDI systems from particulate damage.

The Real Cost of Wrong Parts

A $50 counterfeit injector may cost $2,800 in downtime for a single day’s work on a rental KX080-4 — plus labor for reinstallation and potential cylinder head damage from poor combustion. OEM-equivalent parts reduce total cost of ownership (TCO) by extending service intervals, maintaining factory-rated fuel efficiency (≤ 210 g/kWh), and avoiding secondary failures caused by unbalanced cylinder contribution. Our injectors comply with ISO 8528-10 and Kubota’s V3307-CR-TE4 calibration protocols — not just form-fit-function.

Why Customers Trust XUNPO

Packaging & Shipping

• Each injector sealed in anti-static blister pack, nested in custom-cut EPE foam inside a rigid double-walled export carton
• In-stock items shipped within 2–5 working days after payment confirmation
• Flexible logistics: DHL/FedEx/UPS express (3–7 days), air freight (7–12 days), or sea freight (25–40 days)
• Real-time tracking number provided upon dispatch
• MOQ is 1 piece — ideal for urgent maintenance or verification before bulk orders

Get Your Kubota V3307 Fuel Injectors Now

Your excavator shouldn’t wait weeks for parts. Send us your machine model (e.g., KX080-4), quantity, and destination — we’ll email a competitive quote within 24 hours. First-time buyers can request a sample set for bench testing. With stock in Guangzhou and proven reliability across Tier 4 applications, you’ll get back to work faster — and stay there longer.

Frequently Asked Questions