3 Cylinder Injector Seal Kit With Heat Shield 25-39309-00 25-39310-00 29-70175-00 for Kubota D1105 Carrier CT3.69 CT3-69-TV Engine
This injector seal kit is engineered as a direct replacement for the Kubota D1105 Carrier CT3.69 CT3-69-TV Engine. Manufactured to meet or exceed OEM specifications, it delivers reliable performance in demanding conditions. Each unit is tested for fuel flow, pressure rating, and durability before leaving the factory to ensure consistent quality across every order.
Vehicle Compatibility
| Application | Details |
|---|---|
| Kubota D1105 | See product specifications |
| Carrier CT3.69 CT3 | 69-TV Engine Replace Part Number:25-39309-00, 25-39310-00, 29-70175-00, 253930900, 253931000, 297017500 Fit For |
| Kubota Engine:D1105, D1105 | E3B-CTD-2Fit For |
| Carrier Engine:CT 369, 3,69, CT3.69, 3.69, CT3.69 TV, CT369 TV, CT3 | 69-TV, CT3.69-TV Applications:Fit For |
| Carrier Transicold:Supra 922, Supra 944, Supra 950Fit For | See product specifications |
| Carrier Generator:Genesis R90 | See product specifications |
Replaces OEM Part Numbers
25-39309-00 • 25-39310-00 • 29-70175-00 • 253930900 • 253931000 • 297017500 • Kubota • Engine • D1105 • D1105-E3B-CTD-2Fit • Carrier • CT3.69
Signs You Need a Replacement
If your equipment is showing any of these symptoms, the injector seal kit may be the cause:
- Fuel leak at injector base — Copper washers lose their crush seal over time. If you see dampness around the injector, the seals need replacement.
- Fuel in coolant or oil — A failed combustion seal allows fuel pressure to escape into adjacent passages. This is a serious issue that requires immediate attention.
- Loss of compression on one cylinder — When the copper sealing washer fails, combustion gases blow past the injector body instead of pushing the piston.
Installation Notes
Clean the injector bore thoroughly before installing new seals. Any carbon or debris left in the bore prevents the copper washer from seating properly, causing a compression leak. Use a wire brush or bore cleaning tool, then wipe with a lint-free cloth. Install the seals in the order specified in the kit — the heat shield goes on first, then the copper washer, then the O-rings. Torque the injector to the specified value and recheck after running the engine under load.
Frequently Asked Questions
Will this fit my Kubota D1105?
Yes. This part is designed to fit the Kubota D1105 among other models listed in the compatibility table above. Verify your specific model and engine code before ordering to ensure the correct fit.
Can I cross-reference 25-39309-00 with 25-39310-00?
Yes. Both 25-39309-00 and 25-39310-00 are interchangeable OEM numbers for this part. They refer to the same component with the same specifications, just different part number revisions.
How do I check if my engine code (CT369) matches?
The engine code is stamped on a metal tag attached to the engine block, usually near the timing belt cover or on the cylinder head. Compare the code you find with the list above. Engine codes are 3 to 6 characters long.
Do I need to replace the seals when removing injectors?
Yes. The copper sealing washers are single-use – they crush to form the seal and cannot be reused. Rubber O-rings harden over time from heat and fuel exposure. Even if the old seals look fine, they won’t seal properly on reassembly.
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