Valve Stem

Valve stem seals for heavy duty diesel trucks

Discover our complete range of valve stem seals for heavy duty trucks. These heavy duty engine parts control lubrication at the valve guide and prevent leaks for stable operation. They provide reliable sealing and help reduce oil consumption to improve efficiency and extend service life in diesel engines. Classified as replacement engine parts they deliver precise fit and durability for fleet maintenance. Compatible with Mack Volvo Caterpillar Detroit Diesel Freightliner Paccar and Cummins engines. Buy today for proven performance.
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Cummins ISB/QSB 3945438 Valve Stem Seal (Pack6)

Cummins ISB/QSB 3945438 Valve Stem Seal PAI 192111 (Pack6)

$9.66 USD
CROSS REFERENCE: 3945438 3942572 APPLICATION: Cummins ISB/QSB DETAILS: ISB/QSB (Short) BRAND: PAI 192111 Cummins 3945438 Valve Stem Seal PAI 192111 supported by diesel performance parts and truck engine parts. Provides...
Cummins ISB/QSB 3955394 Valve Stem Seal (Pack4)

Cummins ISB/QSB 3955394 Valve Stem Seal PAI 192109 (Pack4)

$9.29 USD
CROSS REFERENCE: 3955394 APPLICATION: Cummins ISB/QSB DETAILS: Top Hat Style BRAND: PAI 192109 Cummins 3955394 Valve Stem Seal PAI 192109 supported by commercial truck components and USA truck parts. Provides precise...
Cummins 3921640 Valve Stem Seal (Pack6)

Cummins 3921640 Valve Stem Seal PAI 192005 (Pack6)

$11.17 USD
CROSS REFERENCE: 3901097 3921640 3921639 APPLICATION: Cummins ISB4/4B/6B/ISB/QSB DETAILS: 2 Valve Head/ Exhaust and Intake ISB4 BRAND: PAI 192005 Cummins 3921640 Valve Stem Seal PAI 192005 intended for diesel performance parts...
Cummins ISB/QSB 3955393 Valve Stem Seal (Pack4)

Cummins ISB/QSB 3955393 Valve Stem Seal PAI 192108 (Pack4)

$9.46 USD
CROSS REFERENCE: 3955393 4991571 APPLICATION: Cummins ISB/QSB DETAILS: Top Hat Style BRAND: PAI 192108 Cummins 3955393 Valve Stem Seal PAI 192108 intended for truck engine parts and USA truck parts....
Volvo/D11 21501189 Valve Stem Seal (Pack6)

Volvo/D11 21501189 Valve Stem Seal PAI 892040 (Pack6)

$19.50 USD
CROSS REFERENCE: 21501189 859171 APPLICATION: Volvo/D11 BRAND: PAI 892040 Volvo 21501189 Valve Stem Seal PAI 892040 supported by heavy duty parts and truck parts. Provides stable valve sealing and dependable...
Mack/Renault/Volvo 20864662 Valve Stem Seal (Pack12)

Mack/Renault/Volvo 20864662 Valve Stem Seal PAI 842060 (Pack12)

$36.45 USD
CROSS REFERENCE: 21990221 7420864662 20864662 SS46065 APPLICATION: Mack MP7/MP8 Renault DXi 11/13 Volvo D11/D12/D13 BRAND: PAI 842060 Mack Volvo 20864662 Valve Stem Seal PAI 842060 featuring truck engine parts. Supports...
Detroit Diesel DD15 A4700530158 Valve Stem Seal (Pack6)

Detroit Diesel DD15 A4700530158 Valve Stem Seal PAI 691999 (Pack6)

$10.50 USD
CROSS REFERENCE: A4700530158 A4700530058 A4720530258 A4720530358 A4720530558 APPLICATION: Detroit Diesel DD15/DD13 BRAND: PAI 691999 Detroit Diesel A4700530158 Valve Stem Seal PAI 691999 featuring replacement engine parts. Supports OEM replacement parts...
Cummins ISX12 4003966 Valve Stem Seal (Pack6)

Cummins ISX12 4003966 Valve Stem Seal PAI 192107 (Pack6)

$14.19 USD
CROSS REFERENCE: 4003966 3606766 APPLICATION: Cummins ISX12/M11/Multiple Use Application BRAND: PAI 192107 DETAILS: Valve Stem Seal Use with Guide  3328786 Cummins 4003966 Valve Stem Seal PAI 192107 featuring diesel performance...
Cummins ISX 4026791 Valve Stem Seal Cup Style (Pack6)

Cummins ISX 4026791 Valve Stem Seal Cup Style PAI 192119 (Pack6)

$16.38 USD
CROSS REFERENCE: 3680318 4026660 4026791 4312008 APPLICATION: Cummins ISX DETAILS:  0.323in Valve Seal I.D. x 0.553in Guide Install Diameter x 0.460in Spring Seat Diameter 8.20mm Valve Seal I.D. x 14.00...
Cummins ISX 4376219 Valve Stem Seal and Lock Kit PAI 192164

Cummins ISX 4376219 Valve Stem Seal and Lock Kit PAI 192164

$221.00 USD
CROSS REFERENCE: 4376219 APPLICATION: Cummins ISX DETAILS: Include 4356366 (24) 1824544C1 (48) OEM Number Description Quantity 4356366 VALVE STEM SEAL 24 1824644C1 VALVE LOCK 48 BRAND: PAI 192164 Cummins 4376219...
Cummins ISX 4356366 Valve Stem Seal (Pack6)

Cummins ISX 4356366 Valve Stem Seal PAI 192161 (Pack6)

$48.04 USD
CROSS REFERENCE: 4356366  APPLICATION: Cummins ISX DETAILS: Top Hat Style Need to Verify With Engine Serial Number BRAND: PAI 192161 Cummins 4356366 Valve Stem Seal PAI 192161 featuring commercial truck...
Cummins ISX 4026657 Valve Stem Guide (Pack4)

Cummins ISX 4026657 Valve Stem Guide PAI 192126 (Pack4)

$12.37 USD
CROSS REFERENCE: 4026657 3680867 3680731 APPLICATION: Cummins ISX  DETAILS: 0.650in O.D. x 0.382in I.D. x 4.101in Overall Length BRAND: PAI 192126  Cummins 4026657 Valve Stem Guide PAI 192126 featuring replacement...