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HomeShopFuel Injector1PC Fuel Injector 557-7637 – Compatible with Caterpillar C9 Engine | Fits CAT D300GC, D250GC, XQP300 Generator Set, D6R XL, D6T, D6R LGP Tractors | Diesel Injector Replacement

Description

1PC Fuel Injector 557-7637 – Compatible with Caterpillar C9 Engine | Fits CAT D300GC, D250GC, XQP300 Generator Set, D6R XL, D6T, D6R LGP Tractors | Diesel Injector Replacement

⛽ High-Performance Injector for CAT C9 Engines

This OEM-quality fuel injector delivers precise fuel metering to restore optimal performance in Caterpillar C9-powered equipment.

✅ Key Features:

  • Direct Replacement for 557-7637 (CA5577637)

  • Heavy-Duty Construction – Hardened steel withstands 30,000+ PSI

  • Optimized Spray Pattern – Reduces emissions & improves combustion

  • Factory-Calibrated – Ready for immediate installation

🚜 Equipment Applications:

Generators:

  • XQP300 Generator Set
    Tractors:

  • D6R XL, D6T, D6R LGP
    Drills:

  • D250GC, D300GC

🛒 Purchase Options:

🔧 Installation Tips:

  1. Clean injector bore thoroughly

  2. Replace all O-rings & washers

  3. Torque to 35 Nm (26 ft-lbs)

  4. Perform injector calibration after installation

🔍 Keywords:
Cat 557-7637 injector, C9 fuel injector, D6T injector replacement, XQP300 generator injector, CA5577637


Why Choose This Injector?
✔ Restores factory-rated horsepower
✔ 12-month performance warranty
✔ Pre-tested spray pattern
✔ Reduces exhaust smoke

Need injectors for other CAT engines? Ask about our C7/C15 series!

Additional information

Weight 1.5 kg
Dimensions 26 × 12 × 8 cm

Warranty

Tianguan provides a 1-year limited warranty for new starters/alternators only. If the problem is caused by Tianguan, the seller pays all shipping costs. The warranty does not apply to improper installation, water/fire damage, modifications, or any natural disasters.

Returns

If the return is caused by the consumer (non-defective return), consumer should be responsible for the shipping fee. The specific fee should be based on the express company you choose. If the item problem is caused by Tianguan, contact us before return item, we will provide refund/exchange/or other way to solve it.No refund/exchange to provide if no notification before sending back items beforehand. If customer received damaged product, customer need to send email to linda@tgautoparts.com in 72 hours of item delivered. Customer need to send pictures/videos(use to proof related issues) in emails, Tianguan will recognize the return reason/confirm the issue. Our team will feedback to customer asap. ◉ Damaged Item Damaged merchandise includes items that are damaged during shipping. If you receive the package and then find shipping damage, please save all packaging material and paperwork and contact us immediately by mail linda@tgautoparts.come or other way you have. ◉ Technical Support We highly recommend professional installation for all of our products. We are not accepting any exchange or returns due to improper installation.

Shipping

Orders usually been shipped out within 1-2business days after payment has been cleared, Delivery in 5-7 working days .Orders made on Saturdays, Sundays, and holidays will be processed on the next business day. If there is any problem on your order, please feel free to contact our team by email(linda@tgautoparts.com) Please ensure that the shipping address you provide is accurate. We are not responsible for undeliverable addresses. Shipping address of P.O. BOX, APO, FPO or State of HI, AK, VI, PR. will not accepted.

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