This updated Caterpillar Injector Cross-Reference contains an expanded version of cross-reference numbers and engine serial number (ESN) prefix ranges for 3406 applications. As with the previous version, injector seal kit part numbers are included in the tables below. We utilize many vendor sources and stock availability varies from part number to part number and vendor to vendor. If you have a Cat application that you are unsure of the injector part number, call us at 740-392-3693 with your Cat ESN.

Some examples of ESN prefixes are 5EK, 1LW, BXS, 6NZ, etc. Ideally, we would like the entire engine serial number to assist you but at the bare minimum, we require your engine serial prefix.

 

Caterpillar 3126

3126 Injector P/N Install Kit ESN Prefix
0R9348 | 0R-9348 | 12739379 | 145-6390 | 1459360 | 145-9360 | 1551819 | 155-1819 |1573727 | 157-3727 | 1731012 | 173-1012 | 1734566 | 173-4566 | 1739379 | 173-9379 | 1881320 | 188-1320 | 2225965 | 222-5965 | 639348 | EX639348 | OR9348 | R-0R9348 | FS0R9348 | 148-012-0052 HTK124 *
0R9349 | 0R-9349 | 10R9238 | 10R-9238 | 1260499 | 126-0499 | 1317150 | 131-7150 | 1734059 | 173-4059 | 1739267 | 173-9267 | 1739268 | 173-9268 | 1961401 | 196-1401 | 1OR9238 | 1OR-9238 | 2225967 | 222-5967 | 639349 | EX639349 | OR9349 | OR-9349 | R-0R9349 | FS0R9349 | 148-012-0050 | HTK124 *
0R9350 | 0R-9350 | 10R9239 | 10R-9239 | 1417837 | 141-7837 | 1697410 | 169-7410 | 1731013 | 173-1013 | 1739272 | 173-9272 | 1964229 | 196-4229 | 2225972 | 222-5972 | 639350 | EX639350 | OR9350 | OR-9350 | R-0R9350 | FS0R9350 | 148-012-0054 HTK124 *
10R0781 | 10R-0781 | 1977107 | 197-7107 | 1986605 | 198-6605 | 1996065 | 199-6065 | 2225966 | 222-5966 | 630781 | EX630781 | R-10R0781 | FS10R0781 | 148-012-0051 HTK124 *
10R0782 | 10R-0782 | 10R9237 | 10R-9237 | 177-4752 | 1774754 | 1780198 | 178-0198 | 1780199 | 178-0199 | 2051285 | 205-1285 | 630782 | EX630782 | R-10R0782 | FS10R0782 | 148-012-0049 HTK124 *
10R1262 | 10R-1262 | 2033771 | 203-3771 | 2046714 | 204-6714 | 2225963 | 222-5963 | 631262 | EX631262 | R-10R1262 | FS10R1262 | 148-012-0053 HTK124 *

Caterpillar C7

C7 Injector P/N Install Kit ESN Prefix
10R4761 | 10R-4761 | 10R4761R | 1480120001 | 148-012-0001 | 20R8057 | 20R-8057 | 22225961 | 2225959 | 222-5959 | 222-5961 | 2333536 | 233-3536 | 2360973 | 236-0973 | 2413238 | 241-3238 | 2434502 | 243-4502 | 2544339 | 254-4339 | 2951408 | 295-1408 | 3282583 | 328-2583 | 3879430 | 387-9430 | 634761 | EX634761| R-10R4761 | FS10R4761 | 148-012-0001 HTK111 *
10R4762 | 10R-4762 | 10R4767 | 20R8058 | 20R-8058 | 2225962 | 222-5962 | 2366011 | 236-6011 | 2389808 | 238-9808 | 2413239 | 241-3239 | 2434503 | 243-4503 | 2951409 | 295-1409 | 3282584 | 328-2584 | 3879429 | 387-9429 | 634762 | EX634762 | R-10R4762 | FS10R4762 | 148-012-0002 HTK111 *
10R4763 | 10R-4763 | 1480120003 | 148-012-0003 | 20R8059 | 20R-8059 | 2333535 | 233-3535 | 2360974 | 236-0974 | 2388091 | 238-8091 | 2413400 | 241-3400 | 2638218 | 263-8218 | 2951410 | 295-1410 | 3282582 | 328-2582 | 3879428 | 387-9428 | 634763 | EX634763 | R-10R4763 | FS10R4763 | 148-012-0003 HTK111 *

Caterpillar C10, C12

C10/12 Injector P/N Install Kit ESN Prefix
10R0961 | 10R-0961 | 116-5426 | 2123465 | 212-3465 | 630961 | EX630961 | R-10R0961 | FS10R0961 HTK123 *
0R8773 | 0R-8773 | 10R0963 | 10R-0963 | 10R9235 | 10R-9235 | 137-2500 | 1470373 | 147-0373 | 160-1090 | 160-2303 | 1945083 | 194-5083 | 2123463 | 212-3463 | 630963 | EX630963 | R-10R0963 | FS10R0963 | 148-012-0008 HTK123 *
10R0967 | 10R-0967 | 116-5414 | 161-1785 | 2123462 | 212-3462 | 630967 | EX630967 | FS10R0967 | 148-012-0031 HTK123 *
10R0968 | 10R-0968 | 116-5425 | 156-1011 | 212-3466 | 630968 | EX630968 | R-10R0968 | FS10R0968 | 148-012-0009 HTK123 *

Caterpillar C13

C13 Injector P/N Install Kit ESN Prefix
10R2977 | 10R-2977 | 10R2977R | 2490708 | 249-0708 | 632977 | EX632977 | R-10R2977 | FS10R2977 | 148-012-0010 HTK112 *

Caterpillar 3406, C15

3406/C15 Injector P/N Install Kit ESN Prefix
10R0955 | 10R-0955 | 2113025 | 211-3025 | 630955 | EX630955 | R-10R0955 | FS10R0955 | 148-012-0027 HTK112 BNT, BET,
1MZ, BLC
HP Range: 355, 375, 435, 410, 450

10R0956 | 10R-0956 | 0R4332 | 0R-4332 | 0R4895 | 0R-4895 | 0R9256 | 0R-9256 | 1026236 | 102-6236 | 1095038 | 109-5038 | 10R2782 | 10R-2782 | 1170481 | 117-0481 | 1187929 | 118-7929 | 1189027 | 118-9027 | 1408951 | 140-8951 | 1592631 | 159-2631 | 1889027 | 188-9027 | 1913002 | 191-3002 | 2113022 | 211-3022 | 630956 | EX630956 | OR4332 | OR4895 | OR9256 | R-10R0956 | FS10R0956 | 148-012-0005

HTK112 1LW1-UP,
2WS1-UP,
6NZ1-UP
HP Range: 375, 435, 455, 475, 500, 550, 575, 600

10R0957 | 10R2781 | 10R8500 | 10R8501 | 0R4119 | 0R4300 | 0R4331 | 0R4894 | 0R9257 | 102-2014 | 1034562 | 103-4562 | 109-502 | 1095021 | 109-5021 | 1170482 | 117-0482 | 1188010 | 118-8010 | 1189030 | 118-9030 | 1408993 | 140-8993 | 1592479 | 159-2479 | 1913003 | 191-3003 | 2113023 | 211-3023 | 630957 | EX630957 | OR4119 | OR4300 | OR4331 | OR4894 | OR9257 | R-10R8501 | FS10R8501 | 148-012-0006

HTK112 5EK, 1LW,
2WS, 5DS,
6TS, 4AS,
1MM
HP Range: 435, 475, 500, 550

10R0958 | 10R0959 | 10R-0959 | 10R2780 | 10R8502 | 0R4118 | 0R4668 | 0R4893 | 0R9258 | 1026230 | 102-6230 | 1171146 | 117-1146 | 1171148 | 117-1148 | 1189035 | 118-9035 | 1523680 | 152-3680 | 1913004 | 191-3004 | 2113024 | 211-3024 | 211-3027 | 630958 | EX630958 | OR4118 | OR4668 | OR4893 | OR9258 | R-10R8502 | FS10R8502 | 148-012-0007

HTK112 435HP: 5EK67123-UP
475HP: 6TS1-UP
475HP: 5EK67193-UP
500HP: 5EK19931-UP
500HP: 6TS1-UP
550HP: 5EK51000-UP
550HP: 6TS1-UP
10R1273 | 10R-1273 | 10R1273R | 10R9236 | 10R-9236 | 1480120036 | 148-012-0036 | 2394909 | 239-4909 | 2490709 | 249-0709 | 631273 | EX631273 | R-10R1273 | FS10R1273 | 148-012-0036 HTK112 BXS, BXT, MXS, NXS, TRB, RKS
10R1000 | 10R-1000 | 2295919 | 229-5919 | 635919 | EX635919 | R-10R1000 | FS10R1000 | 148-012-0032 HTK112 MBN 450-525HP
MBL 370-500HP
BXS 450-550HP

The Caterpillar injectors listed in the tables above are the common applications we see with 3406 injectors being the most common. More specifically, Cat 0R-0956, 0R-0957, and 0R-0958 are the most common injectors. If your Cat application is not listed on this page, please reach out to us with your ESN or injector part number if you know it and we can provide pricing and availability.

The team at PurrFormance Diesel is in the office five days a week ready to assist you with your Caterpillar injectors and more. Call us at 740-392-3693 or email us at parts@purrformancediesel.com.