Used Cummins ISB 5.9L Engine Parts For Sale

Used Cummins ISB 5.9L Push Rod Cover

$75 USD

Used ISB 5.9L Push Rod Cover, Type: Lifter Cover

Condition	Used
Fits To Make(s)	Cummins
Fits To Model(s)	ISB 5.9L
Part Number	3936249
Stock Number	507-17099
MLS Number	13389397
Category	Engine Covers
Last Updated	1/24/2026
Location	Dorr, MI, US
Sold By	Frontier Truck Parts

(844) 641-___ SHOW
NUMBERCall Seller

2007 Cummins ISB 5.9L Engine Control Module (ECM) for a Ford F650

$500 USD

ECM WORK IT HAS A DENT IN THE EDGE HAS WARRANTY

Condition	Used
Fits To Make(s)	FORD
Fits To Model(s)	F650
Stock Number	7536
MLS Number	11054990
Category	Engine Control Modules (ECM)
Last Updated	2/8/2025
Location	Morrisville, NY, US
Sold By	Dutcher's Inc.

Used Cummins ISB 5.9L Intake Cover

$59 USD

Used ISB 5.9L Intake Cover, Type: Intake Cover

Quantity	3
Condition	Used
Part Number	3967069
Stock Number	507-15977
MLS Number	13328265
Category	Engine Covers
Last Updated	1/24/2026
Location	Dorr, MI, US
Sold By	Frontier Truck Parts

Cummins ISB 5.9L CM550 ECM ECU Computer OEM P3944124 Tested Part

$349.99 USD

ECM SPECIFICS Condition: GOOD - Tested with Warranty, Price USD: $349 (NO CORE), Make: CUMMINS DIESEL ENGINE, Part#: P3944124 CM550, Stock#: 324742 For more...

Warranty

Condition	Used
Assembly Number	P3944124
Engine Model	ISB 5.9L 24-Valve Inline 6 Turbocharged Diesel Engine
Fits To Equipment	Cummins ISB 5.9L ECM Computer P3944124 CM550
Fits To Make(s)	Cummins ISB 5.9L CM550 ECM ECU Computer P3944124
Fits To Model(s)	ISB 5.9L 24-Valve Non-EGR P3944124
Part Number	P3944124
Stock Number	324743
MLS Number	13326956
Category	Engine Control Modules (ECM)
Last Updated	1/14/2025
Location	Rockwood, TN, US
Sold By	Machinery and Truck Parts

Cummins ISB 5.9L Engine Control Module (ECM) for a 2006 Freightliner MT45 Chassis

$599.98 USD

(Used) 2005 Cummins ISB 5.9, ENGINE ECM- CM: CM850, Part Number: 4921776, Serial Number: 26021803, E/C: Z90030.18, Engine information- Serial Number: 46517562, Displacement: 5.9L, 1...

Condition	Used
Fits To Make(s)	Freightliner
Fits To Model(s)	MT45 Chassis
Will Fit Year(s)	2006
Part Number	4921776
Stock Number	P-95205
MLS Number	13326526
Category	Engine Control Modules (ECM)
Last Updated	3/13/2026
Location	Elkton, MD, US
Sold By	CRG Heavy Truck Parts

(888) 595-___ SHOW
NUMBERCall Seller

Cummins ISB 5.9L Engine Part

$110 USD

Nous livrons partout au Canada et États-Unis. We ship anywhere in Canada USA. - Stock: 9031GE - Engine Gear Cummins ISB 5.9 - P/N : 3929031, Serial#: Other

Condition	Used
Stock Number	9031GE
MLS Number	13326209
Category	Engine Miscellaneous Parts
Last Updated	1/14/2025
Location	Beauceville, QC, Canada
Sold By	Camions Gilbert

Cummins ISB 5.9L Engine Control Module (ECM) for a 2006 Freightliner MT45 Chassis

$599.98 USD

(Used) 2006 Cummins ISB, ENGINE ECM- Part Number: 4921776 Serial Number: 37024497, ECM CODE: Z90005. 30 Engine information- Family Number: 6CEXH0359BAG, Serial Number: 60271684 2 Plugs with...

Condition	Used
Fits To Make(s)	Freightliner
Fits To Model(s)	MT45 Chassis
Will Fit Year(s)	2006
Part Number	4921776
Stock Number	P-95002
MLS Number	13321077
Category	Engine Control Modules (ECM)
Last Updated	3/13/2026
Location	Elkton, MD, US
Sold By	CRG Heavy Truck Parts

(888) 519-___ SHOW
NUMBERCall Seller

Cummins ISB 5.9L Engine Oil Pan

$200 USD

Good used, cleaned and inspected Cummins ISB5.9 Oil Pan. Part Number: 3915703, 3355068, 3900960

Condition	Used
Part Number	3915703
Stock Number	Ryd 3915703
MLS Number	10204045
Category	Engine Oil Pans
Last Updated	1/8/2025
Location	Fitchburg, MA, US
Sold By	Rydemore Heavy Duty Truck Parts

Cummins ISB 5.9L Engine Control Module (ECM) for a 2006 Freightliner MT45 Chassis

$599.98 USD

(Used) 2005 Cummins ISB 5.9, ENGINE ECM- CM: CM850, Part Number: 4921776, Serial Number: 26021771, E/C: Z90030.18, Engine information- Serial Number: 46517574, Displacement: 5.9L, 1...

Condition	Used
Fits To Make(s)	Freightliner
Fits To Model(s)	MT45 Chassis
Will Fit Year(s)	2006
Part Number	4921776
Stock Number	P-94498
MLS Number	13307107
Category	Engine Control Modules (ECM)
Last Updated	3/13/2026
Location	Elkton, MD, US
Sold By	CRG Heavy Truck Parts

2003 Used Cummins ISB 5.9L Passenger Rear Engine Mount

$100 USD

Used ISB 5.9L Passenger Rear Engine Mount, Position: Passenger Rear, Type: Engine Mount, Material: Cast Iron

Condition	Used
Fits To Make(s)	Cummins
Fits To Model(s)	ISB 5.9L
Will Fit Year(s)	2003
Part Number	F81A6096BB
Stock Number	548-13265
MLS Number	13196510
Category	Engine Mounts
Last Updated	1/24/2026
Location	Dorr, MI, US
Sold By	Frontier Truck Parts

(844) 329-___ SHOW
NUMBERCall Seller

Cummins ISB 5.9L Common Rail ECM

$950 USD

Electronic control module pulled from a running, working engine. Cummins ISB 5.9 Common Rail ECM; T3030. Call or message with any questions or visit our website.

Condition	Used
Part Number	P4921776
Stock Number	3216
MLS Number	12138865
Category	Engine Control Modules (ECM)
Last Updated	10/24/2024
Location	Springville, PA, US
Sold By	Summit Core Supply

Used Cummins ISB 5.9L Main caps

$88 USD

Used ISB 5.9L Main caps, Type: Cummins ISB 5.9L Main Caps.

Condition	Used
Part Number	3974156
Stock Number	549-10095
MLS Number	12744823
Category	Engine Miscellaneous Parts
Last Updated	1/24/2026
Location	Dorr, MI, US
Sold By	Frontier Truck Parts

(305) 688-___ SHOW
NUMBERCall Seller

Cummins ISB 5.9L Valve Cover Part # 3945799

$150 USD

(GOOD USED) Cummins ISB 5.9L Valve Cover 3945799 For Sale, 24 VALVE, FITS 1998 1999 2000 2001 2002 2003, Part # 3945799, ISB 5.9, 6BT, Stock # 6569 | Tested Inspected! All our PARTS are...

Condition	Used
Part Number	3945799
Stock Number	6569
MLS Number	12496195
Category	Valve Covers
Last Updated	7/15/2024
Location	Opa Locka, FL, US
Sold By	CA Truck Parts Inc.

(844) 385-___ SHOW
NUMBERCall Seller

Cummins ISB 5.9L Engine Control Module (ECM)

$750 USD

(GOOD USED/ TESTED) OEM Cummins ISB Diesel Engine Control Module, ECM, ECU, for sale!!!!!! Part #: 4921776; Service Model Name: CM850; Stock #: E3833 For more information about this listing,...

Condition	Used
Part Number	4921776
Stock Number	E3833
MLS Number	12968985
Category	Engine Control Modules (ECM)
Last Updated	7/3/2024
Location	Hialeah, FL, US
Sold By	JJ Rebuilders Inc.

(GOOD USED) 2004 Cummins ISB 5.9L Push Rod 11 1/4" (SOLD INDIVIDUALLY)

$9.99 USD

PART SPECIFICS, Price USD: $9.99, Make: CUMMINS ISB DIESEL ENGINE, Model: 24V PUSH RODS (SOLD INDIVIDUALLY), Part#: 11 1/4", Stock#: 323416, Condition: GOOD USED

Quantity	12
Condition	Used
Will Fit Year(s)	2004-2006
Part Number	11 1/4"
Stock Number	323416
MLS Number	12916787
Category	Push Rods
Last Updated	6/6/2024
Location	Rockwood, TN, US
Sold By	Machinery and Truck Parts

Cummins ISB 5.9L 24-Valve Diesel Engine Connecting Rod Part# 3971210

$29.99 USD

PART SPECIFICS, Price USD: $29.99 (SOLD INDIVIDUALLY), Make: CUMMINS ISB 5.9L 24-VALVEDIESEL ENGINE, Model: CONNECTING ROD, Part#: 3971210, Stock#: 321466,...

Warranty

Quantity	6
Condition	Used
Part Number	3971210
Stock Number	324458
MLS Number	12907620
Category	Engine Rods
Last Updated	6/3/2024
Location	Rockwood, TN, US
Sold By	Machinery and Truck Parts

Cummins ISB 5.9L Engine Control Module (ECM) for a 2007 Freightliner MT45 Chassis

$699.99 USD

(Used) 2006 Cummins ISB 5.9, ENGINE ECM- Serial Number: A35000730, Part Number: P4921776-RX, DC: 1931, Engine information- Displacement: 5.9L, Serial Number: 60285931, Part Number 4018419,...

Condition	Used
Fits To Make(s)	Freightliner
Fits To Model(s)	MT45 Chassis
Will Fit Year(s)	2007
Part Number	P4921776-RX
Stock Number	P-48323
MLS Number	12073968
Category	Engine Control Modules (ECM)
Last Updated	5/24/2024
Location	Elkton, MD, US
Sold By	CRG Heavy Truck Parts

Cummins ISB 5.9L Engine Control Module (ECM) for a 2006 Freightliner MT45 Chassis

$599.99 USD

(Used) 2005 Cummins ISB 5.9, ENGINE ECM- Serial Number: 34136443, Part Number: 4921776, ECM Code: 790005.30, Engine information- Family Number: 6CEXH0359BAG, Displacement: 5.9L, Horsepower:...

Condition	Used
Fits To Make(s)	Freightliner
Fits To Model(s)	MT45 Chassis
Will Fit Year(s)	2006
Part Number	4921776
Stock Number	P-46028
MLS Number	12013614
Category	Engine Control Modules (ECM)
Last Updated	5/24/2024
Location	Elkton, MD, US
Sold By	CRG Heavy Truck Parts

(GOOD USED) 2004 Cummins ISB 5.9L Push Rod 11 1/4" (SOLD INDIVIDUALLY)

$9.99 USD

PART SPECIFICS, Price USD:$9.99, Make: CUMMINS 5.9LDIESEL ENGINE, Model: 11 1/4INCH PUSH RODS (SOLD INDIVIDUALLY), Part#: 11 1/4INCH, Stock#: 324423, Condition: GOOD USED

Quantity	12
Condition	Used
Will Fit Year(s)	2004-2006
Part Number	11 1/4"
Stock Number	324423
MLS Number	12859696
Category	Push Rods
Last Updated	5/9/2024
Location	Rockwood, TN, US
Sold By	Machinery and Truck Parts

(GOOD USED) Cummins ISB 5.9L Engine Block Stiffener P# 3959073

$49.99 USD

PART SPECIFICS, Price USD: $49.99, Make: CUMMINS ISB 5.9LDIESEL ENGINE, Model: BLOCK STIFFENER, Part#: 3959073, Stock#: 324427, Condition: GOOD USED

Warranty

Condition	Used
Part Number	3959073
Stock Number	324427
MLS Number	12853441
Category	Engine Block Stiffeners
Last Updated	5/8/2024
Location	Rockwood, TN, US
Sold By	Machinery and Truck Parts

(GOOD USED) Cummins ISB 24-Valve 5.9L Diesel Engine Camshaft Part# 3954099

$189.99 USD

PART SPECIFICS, Price USD: $189.99, Make: CUMMINS ISB 5.9L 24-VALVEDIESEL ENGINE, Model: CAMSHAFT OEM, Part#: 3954099, Stock#: 324417, Condition: GOOD USED

Warranty

Condition	Used
Part Number	3954099
Stock Number	324417
MLS Number	12853065
Category	Camshafts
Last Updated	5/8/2024
Location	Rockwood, TN, US
Sold By	Machinery and Truck Parts

(GOOD USED) 2004-2007 Cummins ISB 5.9L Engine Oil Filter Base P# 3955034

$79.99 USD

PART SPECIFICS, Price USD:$ 79.99, Make: 2004-2006 CUMMINS 24v 5.9L DIESEL ENGINE OIL FILTER HOUSING, PART#: 3955034, Stock#: 324403, Description: (USED)

Warranty

Condition	Used
Will Fit Year(s)	2004-2006
Part Number	3955034
Stock Number	324403
MLS Number	12851357
Category	Engine Oil Filter Bases
Last Updated	5/8/2024
Location	Rockwood, TN, US
Sold By	Machinery and Truck Parts

(GOOD USED) Cummins ISB 5.9L 24-Valve Diesel Engine Rocker Housing OEM-Part# 3955121

$139.99 USD

PART SPECIFICS, Price USD:$139.99, Make: CUMMINS ISB 5.9L 24-VALVE DIESELENGINE, Model: ROCKER HOUSING / VALVE COVER SPACER, Part#: 3955121, Stock#: 324400,...

Warranty

Condition	Used
Part Number	3955121
Stock Number	324400
MLS Number	12850291
Category	Valve Covers
Last Updated	5/7/2024
Location	Rockwood, TN, US
Sold By	Machinery and Truck Parts

(305) 688-___ SHOW
NUMBERCall Seller

Cummins ISB 5.9L Engine Thermostat Housing Part # 3926508

$250 USD

(GOOD USED) Cummins ISB 5.9L Diesel Engine Thermostat Housing 3926508 For Sale, OEM Part # 3926508, Belt Tensioner Bracket Part # 3925191, Alternator Support Part # 3927100, 4T6, D12, BAGK,...

Condition	Used
Part Number	3926508
Stock Number	6981
MLS Number	12655151
Category	Engine Thermostat Housings
Last Updated	2/23/2024
Location	Opa Locka, FL, US
Sold By	CA Truck Parts Inc.