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Cummins Engine Rebuild Kits

RF Engine carries a full line of Cummins engine rebuild kits designed to restore performance and extend engine life. Kits typically include pistons, rings, pins, cylinder liners (where applicable), rod and main bearings, and either a head gasket set & pan gasket (inframe) or full gasket set with crank seals (out-of-frame). Exact contents vary by kit — check each listing for details.

We ship from multiple warehouses to get parts to you fast. Need help choosing the right kit? Our team of engine experts is ready to help. Give us a call at 800-828-6943.

Select an engine family below to view available rebuild kits.

Cummins 4B 3.3L Engine Kit
6 Kits Available
Starting from $909...
Cummins 4B 3.9L NA Engine Kit
9 Kits Available
Starting from $233...
Cummins 4B 4.5L Engine Kit
6 Kits Available
Starting from $762...
Cummins 4BT 3.9L Turbo Engine Kit
10 Kits Available
Starting from $233...
Cummins 4BTA 3.9L Turbo Aftercooled Engine Kit
14 Kits Available
Starting from $233...
Cummins 4BTAA, QSB 3.9L Engine Kit
2 Kits Available
Starting from $712...
Cummins ISB 5.9L 12-Valve Engine Kit
1 Kit Available
Starting from $741...
Cummins ISB 5.9L 24-Valve Engine Kit
20 Kits Available
Starting from $742...
Cummins 6B 5.9L NA Engine Kit
6 Kits Available
Starting from $395...
Cummins 6BT 5.9L Turbo Engine Kit
12 Kits Available
Starting from $395...
Cummins 6BTA 5.9L Turbo Aftercooled Engine Kit
12 Kits Available
Starting from $395...
Cummins 6BTAA, QSB 5.9L Engine Kit
3 Kits Available
Starting from $1,020...
Cummins 6C Engine Kit
1 Kit Available
Starting from $541...
Cummins 6CT 8.3L Engine Kit
19 Kits Available
Starting from $541...
Cummins 6CTA 8.3L Engine Kit
20 Kits Available
Starting from $541...
Cummins 6G 8.3L Natural Gas Engine Kit
8 Kits Available
Starting from $1,864...
Cummins ISC, QSC 8.3L 24-Valve Engine Kit
18 Kits Available
Starting from $541...
Cummins ISL, QSL 8.9L Engine Kit
13 Kits Available
Starting from $1,817...
Cummins L10 Engine Kit
12 Kits Available
Starting from $1,665...
Cummins L10, GLTA10 Natural Gas Engine Kit
2 Kits Available
Starting from $2,655...
Cummins M11, ISM, QSM Engine Kit
13 Kits Available
Starting from $2,781...
Cummins N14 Electronic Engine Kit
20 Kits Available
Starting from $1,040...
Cummins K19, KT19, KTA19 Engine Kit
2 Kits Available
Starting from $3,140...
Cummins K38, KT38, KTA38 Engine Kit
1 Kit Available
Cummins NH220 Engine Kit
2 Kits Available
Starting from $2,438...
Cummins NH220 Natural Gas Engine Kit
2 Kits Available
Starting from $2,332...
Cummins V378 Engine Kit
1 Kit Available
Starting from $1,273...
Cummins N743, G743, G12 Natural Gas Engine Kit
4 Kits Available
Starting from $2,136...
Cummins 855 (Big Cam, Small Cam) Engine Kit
95 Kits Available
Starting from $1,145...
Cummins 855 Natural Gas Engine Kit
14 Kits Available
Starting from $1,343...
Cummins NH, NT 855 Engine Kit
93 Kits Available
Starting from $1,145...
Cummins V903, VT903 Engine Kit
3 Kits Available
Starting from $2,946...
Cummins V1710, VT1710 Engine Kit
1 Kit Available
Starting from $6,970...
Cummins ISX Engine Kit
25 Kits Available
Starting from $3,523...