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Used Caterpillar 3126 Engine Parts For Sale

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Model
3126
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Showing 76 - 100 of 615 Engine Part Listings

76 - 100 of 615 listings
76 - 100 of 615 listings
Caterpillar 3126 Engine Harmonic Balancer

Caterpillar 3126 Engine Harmonic Balancer

$40 USD
Good used, cleaned and inspected Caterpillar 3126 Harmonic Balancer. Part Number: 4P7378, 338-9809, 10R-0706
Quantity18
ConditionUsed
Fits To Make(s)CATERPILLAR
Fits To Model(s)3126
Part Number4P7378
Stock NumberRyd 4P7378
MLS Number10203993
CategoryEngine Harmonic Balancers
Last Updated12/18/2025
Location
Fitchburg, MA, US
Sold By
Rydemore Heavy Duty Truck Parts
(888) 519-___  SHOW
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Rydemore Heavy Duty Truck Parts
Caterpillar 3126 Engine Control Module (ECM)

Caterpillar 3126 Engine Control Module (ECM)

$550 USD
Good used, cleaned, tested and inspected CAT 3126 ECM. Part Number: 239-3879. 30 Day Guarantee for swap or refund if not programmable. ECM's need to be programmed for your application.
ConditionUsed
Fits To Make(s)CATERPILLAR
Fits To Model(s)3126
Part Number239-3879
Stock NumberRyd 239-3879
MLS Number11387156
CategoryEngine Control Modules (ECM)
Last Updated12/18/2025
Location
Fitchburg, MA, US
Sold By
Rydemore Heavy Duty Truck Parts
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Rydemore Heavy Duty Truck Parts
Caterpillar 3126 Engine Control Module (ECM) Part # 179-4899, 9SZ Serial Prefix

Caterpillar 3126 Engine Control Module (ECM) Part # 179-4899, 9SZ Serial Prefix

$1,500 USD
(GOOD USED BENCHED TESTED w/WARRANTY) Caterpillar 3126 70-PIN Engine Control Module (ECM) 179-4899 For Sale, 70 PIN, Part # 179-4899-02, 179 4899 02, 1794899, 179489902, Personality Module...
ConditionUsed
Part Number179 4899
Stock Number3868
MLS Number14040047
CategoryEngine Control Modules (ECM)
Last Updated12/12/2025
Location
Opa Locka, FL, US
Sold By
CA Truck Parts Inc.
(305) 688-___  SHOW
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CA Truck Parts Inc.
Caterpillar 3126 Front Engine Cover

Caterpillar 3126 Front Engine Cover

$140 USD
Quality used housing-front/front timing cover for a Caterpillar C-7 or 3126, and can work on a C9.3 engine models, modified missing one support bracket see pictures. Low Cost, Warranty, Fast...
ConditionUsed
Stock Number30C-2967523M-STK
MLS Number13401391
CategoryFront Engine Covers
Last Updated12/4/2025
Location
Big Lake, MN, US
Sold By
Quality Bus and Truck Parts
(844) 580-___  SHOW
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Quality Bus and Truck Parts
2003 Caterpillar 3126 Engine Control Module (ECM) Part # 10R3571, HEP Serial Prefix

2003 Caterpillar 3126 Engine Control Module (ECM) Part # 10R3571, HEP Serial Prefix

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(GOOD USED BENCH TESTED w/WARRANTY) Caterpillar 3126 70-PIN Engine Control Module (ECM) 10R3571-11 For Sale, Part # 10R3571, Pulled Off 2003 Caterpillar 3126 70-PIN w/ 250HP, Personality...
ConditionUsed
Part Number10R3571
Stock Number9468
MLS Number13736383
CategoryEngine Control Modules (ECM)
Last Updated10/16/2025
Location
Opa Locka, FL, US
Sold By
CA Truck Parts Inc.
(305) 688-___  SHOW
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CA Truck Parts Inc.
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