6 Pieces Injector Seal Kit A4600700887 A4600700487 for Detroit Engine DD15
This injector seal kit is engineered as a direct replacement for the Detroit Engine DD15. 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 |
|---|---|
| Detroit Engine DD15 | See product specifications |
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
How do I check if my engine code (DD15) 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.
This listing is for 6 pieces – do I need to buy a full set?
This listing includes 6 units. For best results, replace all injectors at the same time rather than one at a time. Mixing old and new units causes uneven fuel delivery and shortens the life of the new parts.
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.
Reviews
There are no reviews yet.