134160-4620 ZEXEL 9 443 610 898 BOSCH DELIVERY-VALVE ASSEMBLY 9443610898 1341604620 221032560a

Do not operate or work on this product unless you have read and understood the instruction and warnings in the relevant Operation and Maintenance Manuals and relevant service literature. Failure to follow the instructions or heed the warnings could result in injury or death. Proper care is your responsibility.
The following changes are adaptable to the products within the listed serial numbers, and are effective with all products after the listed serial numbers.The table below contains the new fuel injector part numbers.Note: Use a 563-8152 Engine Oil Filter (High Efficiency) along with the new fuel injectors.
Table 1
Required Parts
Item Qty New Part Number Part Name
1 6 387-9426 Fuel Injector Gp
2 6 387-9428 Fuel Injector Gp
3 6 387-9429 Fuel Injector Gp
4 6 387-9430 Fuel Injector Gp
5 6 387-9432 Fuel Injector Gp
6 6 387-9434 Fuel Injector Gp
7 6 387-9436 Fuel Injector Gp
8 6 387-9437 Fuel Injector Gp
9 6 387-9438 Fuel Injector Gp
10 6 387-9439 Fuel Injector Gp
11 6 387-9440 Fuel Injector Gp
12 6 387-9441 Fuel Injector Gp
13 6 557-7627 Fuel Injector Gp
14 6 557-7633 Fuel Injector Gp
15 1 563-8152 Engine Oil Filter
16 6 573-4231 Fuel Injector Gp
17 6 573-4235 Fuel Injector Gp The effective serial number for the improved fuel injectors is 3B142289137E.