2005 Isuzu NPR Automatic Transmission Parts

This table covers the Actuator Feed Limit valves. Typical signs include a circuit that will not hold, a whistle, or a code for this valve. A stuck valve is often debris. Clean the ports before installing the new one. Read more

2 Actuator Feed Limit Valve parts for the 2005 Isuzu NPR come from TRANSGO.

This group includes TRANSGO 48ACTVL6 and TRANSGO 48ACTTL.

This table covers the Boost valves. Typical signs include a circuit that will not hold, a whistle, or a code for this valve. A stuck valve is often debris. Clean the ports before installing the new one. Read more

One part is listed for the 2005 Isuzu NPR — SONNAX 4L80ELB1.

This table covers the bushings in this assembly. Typical signs include a clunk over bumps, or a torn or walked-out bushing you can see. Press the new bushing square. A cocked bushing will tear in a few thousand miles. Read more

This group shows a single part: DURA-BOND GMT42.

This table covers the Bushing kits. Read more

3 Bushing Kit parts for the 2005 Isuzu NPR come from DURA-BOND.

This group includes DURA-BOND TK4A, DURA-BOND TK4AEK and DURA-BOND TK4AHP.

This table covers the Case bushings. Typical signs include a clunk over bumps, or a torn or walked-out bushing you can see. Press the new bushing square. A cocked bushing will tear in a few thousand miles. Read more

2 Case Bushing parts for the 2005 Isuzu NPR come from 2 brands — DURA-BOND and SONNAX.

Part numbers include DURA-BOND GMT44 and SONNAX 34006SPB.

This table covers the Center Support bushings. Typical signs include a clunk over bumps, or a torn or walked-out bushing you can see. Press the new bushing square. A cocked bushing will tear in a few thousand miles. Read more

This group shows a single part: DURA-BOND 03118.

This table covers the Clutch hubs. Read more

This group shows a single part: SONNAX 3432202K.

This table covers the Conductor plates. Typical signs include warpage, cracks, or a plate that no longer locates the assembly. Confirm which plate the notes describe — backing plates, clutch plates and strike plates are different parts. Read more

One part is listed for the 2005 Isuzu NPR — ROSTRA 550031.

This table covers the Extension Housing bushings. Typical signs include a clunk over bumps, or a torn or walked-out bushing you can see. Press the new bushing square. A cocked bushing will tear in a few thousand miles. Read more

3 Extension Housing Bushing parts for the 2005 Isuzu NPR come from DURA-BOND.

Part numbers include DURA-BOND 34005F, DURA-BOND 34066EXBR and DURA-BOND GMT45.

This table covers the seals at the Extension Housing. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again. Read more

One part is listed for the 2005 Isuzu NPR — TIMKEN 2457.

This table covers the Fluid Pump bushings. Typical signs include a clunk over bumps, or a torn or walked-out bushing you can see. Press the new bushing square. A cocked bushing will tear in a few thousand miles. Read more

5 Fluid Pump Bushing parts for the 2005 Isuzu NPR come from DURA-BOND. The "Popular" part is DURA-BOND 34001CSTG.

Part numbers include DURA-BOND 34001CSTG, DURA-BOND 34001CT and DURA-BOND 34001C, among others listed above.

This table covers the seals at the Fluid Pump. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again. Read more

2 Fluid Pump Seal parts are listed for the 2005 Isuzu NPR, from NATIONAL and WJB / INMOTION PARTS.

Part numbers include NATIONAL 714598 and WJB / INMOTION PARTS WS714598.

This table covers the governors and modulators that control transmission shift pressure. Read more

This group shows a single part: TRANSGO 48MOD.

This table covers the Main shafts. Read more

One part is listed for the 2005 Isuzu NPR — SONNAX 3467205.

This table covers the Output Shaft bushings. Typical signs include a clunk over bumps, or a torn or walked-out bushing you can see. Press the new bushing square. A cocked bushing will tear in a few thousand miles. Read more

One part is listed for the 2005 Isuzu NPR — DURA-BOND 8624988.

This table covers the Pressure Control (EPC) solenoids. Typical signs include a harsh or missing shift, or a code for this solenoid circuit. Check resistance and the connector before dropping the pan for a solenoid. Read more

This group shows a single part: ROSTRA 520478.

This table covers the Pressure Switch manifolds. Typical signs include an exhaust tick, a vacuum leak, or a gasket that has burned through. Replace the gaskets and hardware; a warped flange will leak with a new gasket alone. Read more

One part is listed for the 2005 Isuzu NPR — ROSTRA 501000.

This table covers the rebuild kits for this assembly. Read more

PA CARGO supplies the 8 Rebuild Kit parts for the 2005 Isuzu NPR. PA CARGO DK3400G carries the "Popular" badge.

In the Banner Kit (Overhaul Kit + Friction Clutch Plates) grade, PA CARGO supplies 3 parts: grouped under the catalog's "Banner Kit (Overhaul Kit + Friction Clutch Plates)" designation — the notes column spells out what sets them apart. A representative part number is PA CARGO DK3400ES.

The Master Kit (Overhaul Kit + Friction & Steel Clutch Plates) section lists 2 options from PA CARGO — grouped under the catalog's "Master Kit (Overhaul Kit + Friction & Steel Clutch Plates)" designation — the notes column spells out what sets them apart. PA CARGO DK3400G is listed in this group.

In the Overhaul Kit (Gaskets, Seals, O-Rings & Sealing Rings) grade, PA CARGO supplies 3 parts: grouped under the catalog's "Overhaul Kit (Gaskets, Seals, O-Rings & Sealing Rings)" designation — the notes column spells out what sets them apart. A representative part number is PA CARGO K34900G.

This group includes PA CARGO DK3400G, PA CARGO DK3400ES and PA CARGO DK3400GS and the remaining parts above.

This table covers the sealing rings inside this assembly. Read more

This group shows a single part: TRANSGO 4L80EHTRK.

This table covers the Shift cables. Typical signs include a stretched or frayed cable, or a control that no longer reaches the end of its travel. Route the new cable through the same clips. A kinked cable binds and fails early. Read more

3 Shift Cable parts are listed for the 2005 Isuzu NPR, from ATP, DORMAN and PIONEER.

Listed part numbers: ATP Y1392, DORMAN 9247017 and PIONEER CA1327.

This table covers the Shift Improvement kits. Read more

3 Shift Improvement Kit parts for the 2005 Isuzu NPR come from TRANSGO.

In the Daily Driver grade, TRANSGO supplies 1 part: grouped for everyday commuting duty. A representative part number is TRANSGO SK4L80E.

The High Performance section lists 2 options from TRANSGO — engineered beyond original-equipment specification. TRANSGO 4L80EHD2 is listed in this group.

Part numbers include TRANSGO SK4L80E, TRANSGO 4L80EHD2 and TRANSGO 4L80E3.

This table covers the Shift solenoids. Typical signs include a harsh or missing shift, or a code for this solenoid circuit. Check resistance and the connector before dropping the pan for a solenoid. Read more

3 Shift Solenoid parts are listed for the 2005 Isuzu NPR, from ROSTRA, ATP and PIONEER.

The Single Solenoid section lists 1 option from ROSTRA — grouped under the catalog's "Single Solenoid" designation — the notes column spells out what sets them apart. ROSTRA 520356 is listed in this group.

The Solenoid Pack / Kit section lists 2 options from ATP and PIONEER — grouped under the catalog's "Solenoid Pack / Kit" designation — the notes column spells out what sets them apart. ATP RE70 is listed in this group.

Part numbers include ROSTRA 520356, ATP RE70 and PIONEER 772454.

This table covers the Stator Support Shaft bushings. Typical signs include a clunk over bumps, or a torn or walked-out bushing you can see. Press the new bushing square. A cocked bushing will tear in a few thousand miles. Read more

3 Stator Support Shaft Bushing parts for the 2005 Isuzu NPR come from DURA-BOND.

Listed part numbers: DURA-BOND GMT41, DURA-BOND 8661614 and DURA-BOND GMT41A.

This table covers the Torque Converter Clutch solenoids. Typical signs include a harsh or missing shift, or a code for this solenoid circuit. Check resistance and the connector before dropping the pan for a solenoid. Read more

2 Torque Converter Clutch Solenoid parts for the 2005 Isuzu NPR come from ROSTRA.

Part numbers include ROSTRA 520241 and ROSTRA 529033.

This table covers the Torque Converter Clutch valves. Typical signs include a circuit that will not hold, a whistle, or a code for this valve. A stuck valve is often debris. Clean the ports before installing the new one. Read more

TRANSGO supplies both parts for the 2005 Isuzu NPR.

This group includes TRANSGO 4L80ETCC and TRANSGO 48CCV.

This table covers the seals at the Torque Converter Shaft. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again. Read more

One part is listed for the 2005 Isuzu NPR — TIMKEN 4598.

This table covers the automatic-transmission fluids specified for this gearbox. Typical signs include harsh or delayed shifts, fluid that smells burnt, or a shudder at light throttle. Use exactly the specification in the notes. Automatic transmissions are unforgiving of the wrong fluid. Read more

3 Transmission Fluid parts for the 2005 Isuzu NPR come from VALVOLINE.

Part numbers include VALVOLINE VV3246, VALVOLINE 773775 and VALVOLINE 881051.

This table covers the conditioners and additives used with this transmission fluid. Read more

6 Transmission Fluid Additive parts for the 2005 Isuzu NPR come from LUBEGARD. The "Popular" part is LUBEGARD 19610.

Part numbers include LUBEGARD 19610, LUBEGARD 60902 and LUBEGARD 19689, among others listed above.

This table covers the valve bodies that route hydraulic pressure inside the transmission. Read more

2 Valve Body parts for the 2005 Isuzu NPR come from SONNAX.

This group includes SONNAX GM029 and SONNAX GM030.

This table covers the Valve Body Separator plates. Typical signs include warpage, cracks, or a plate that no longer locates the assembly. Confirm which plate the notes describe — backing plates, clutch plates and strike plates are different parts. Read more

One part is listed for the 2005 Isuzu NPR — TRANSGO 48PLT01.

This table covers the testers used to diagnose a valve body. Read more

This group shows a single part: SONNAX 34994VTP.