8-94247-861-2 Cylinder Liner for Isuzu 4JB1 Engine

8-94247-861-2 Cylinder Liner for Isuzu 4JB1 Engine Repair

The 8-94247-861-2 cylinder liner is supplied for Isuzu 4JB1 and 4JB1T diesel engine repair, overhaul and sleeve replacement work. It is used to restore the cylinder bore working surface, support piston movement and help recover compression after liner wear, scoring, overheating or long-term engine operation.

This page is focused on 8-94247-861-2 as the main part number. The no-hyphen format 8942478612 is commonly used in buyer searches and parts lists, but the main signal of this page should remain 8-94247-861-2. Final fitment should be confirmed by the 4JB1 engine model, removed liner size, engine nameplate and sample photos before ordering.

Product Information and Reference Dimensions

Common reference data for this Isuzu 4JB1 cylinder liner includes 93 mm bore, 95 mm outer diameter and 181 mm total length. These dimensions are useful for pre-order checking, especially when the old engine has been rebuilt before or the machine model is not clear.

The liner may be requested as a cylinder sleeve, engine liner, dry liner or engine rebuild sleeve in different markets. For repair shops and distributors, the important confirmation points are the part number, engine model, bore size, outer diameter, length, collar design and finish type.

If your removed liner has a different size or edge design, do not order only by the short 4JB1 engine name. Send photos and measurements before quotation so the replacement direction can be checked more safely.

Application Reference for Isuzu 4JB1 and 4JB1T Engines

The Isuzu 4JB1 engine is widely used in light commercial vehicles, pickup platforms, compact machinery, loaders, small excavators and industrial diesel equipment in different markets. Common model references may include Isuzu NHR, NKR, NLR, QKR, TFR, TFS, Trooper, Big Horn and Faster, depending on engine version and regional configuration.

Some aftermarket searches also connect this 4JB1 liner to compact equipment and used machinery repair, including loader and excavator rebuild demand. These model names should be treated as application references, not as the only fitment proof.

For accurate ordering, the engine model and old liner are more important than the vehicle or machine model alone. A machine may have been repowered, rebuilt or repaired with a different engine version during its service life.

How to Confirm the Correct 8-94247-861-2 Cylinder Liner

Before ordering, confirm the removed liner and engine details. This helps reduce wrong-part risk for remote buyers, repair workshops and parts distributors.

• Confirm whether the engine model is Isuzu 4JB1 or 4JB1T.

• Check whether the old liner number matches 8-94247-861-2 or 8942478612.

• Measure the bore size, outer diameter and total length of the removed liner.

• Compare the top collar diameter, collar thickness and lower edge design.

• Check whether the liner is full-finished or semi-finished before installation.

• Send engine nameplate, old liner photos and measurement photos before quotation if you are not sure.

When This Cylinder Liner Should Be Replaced

A 4JB1 cylinder liner may need replacement when the engine has low compression, hard starting, blue smoke, white smoke, high oil consumption, piston scuffing, coolant leakage, abnormal bore wear or reduced engine power.

During overhaul, the liner should not be inspected alone. Piston, piston ring, cylinder block, cylinder head gasket, injector condition, connecting rod bearing, lubrication system, air intake filtration and cooling system should also be checked.

If the original failure was caused by overheating, dirty air intake, poor lubrication or incorrect machining, replacing only the cylinder liner may not solve the complete engine problem.

Buying Notes for Repair Shops and Parts Distributors

For repair shops, this 8-94247-861-2 liner is suitable for Isuzu 4JB1 engine rebuild work where the original sleeve is worn, scratched, corroded or unable to maintain stable compression. For distributors, it can be supplied for Isuzu 4JB1 engine service demand, customer replacement orders and repair stock.

Topvelsun supports both small repair orders and bulk inquiries. If the buyer only has a machine model, our team can help check the engine reference and compare old liner photos before shipment.

For bulk orders, please confirm quantity, finish type, packing requirement and whether you need single pieces or a full engine set. Clear confirmation before shipment helps reduce return cost and wrong-part claims.

Installation and Maintenance Notes

Before installation, clean the cylinder block bore and check for rust, burrs, cracks, old machining marks or block distortion. The liner seat should be clean and stable so the sleeve can sit correctly.

If the liner is semi-finished, final boring and honing should follow the engine rebuild requirements. Check bore size, roundness, taper, surface finish and piston-to-liner clearance before final assembly.

After assembly, monitor oil consumption, exhaust smoke, coolant condition, crankcase pressure, starting performance and operating temperature during the first working period.

Good lubrication, clean intake air and stable cooling performance are important for liner service life. If the engine previously failed from overheating or dust intake, those causes should be corrected during rebuild.

Why Source 8-94247-861-2 Cylinder Liner from Topvelsun

Topvelsun supplies aftermarket diesel engine parts for construction machinery, truck repair, workshop service and overseas parts distribution. For 8-94247-861-2 cylinder liner orders, we help buyers compare part number, engine model, old liner photos and key dimensions before shipment.

This product is suitable for repair workshops, engine rebuilders, parts distributors, fleet maintenance buyers and equipment owners who need practical replacement support. Please send your required quantity, old sample photos and engine information for quotation.

FAQ

What is the main product on this page?

This page is for the 8-94247-861-2 cylinder liner used for Isuzu 4JB1 and 4JB1T diesel engine repair and overhaul.

Is 8942478612 the same search reference as 8-94247-861-2?

8942478612 is commonly used as the no-hyphen writing format for 8-94247-861-2. The main part number of this page should remain 8-94247-861-2, and the old liner should still be checked before ordering.

Which Isuzu models can be used as references?

Common model references may include Isuzu NHR, NKR, NLR, QKR, TFR, TFS, Trooper, Big Horn and Faster, depending on the engine version and market configuration. Final confirmation should be based on the 4JB1 engine and removed liner.

Can this liner be used for compact excavators or loaders?

It may be requested for compact equipment using an Isuzu 4JB1-family engine, including some loader, compact excavator and used machinery repair cases. Please confirm by engine model, old sleeve and machine information before ordering.

What dimensions should be checked before ordering?

Please check the 93 mm bore, 95 mm outer diameter and 181 mm length reference against the removed liner. Also confirm collar diameter, collar thickness, finish type and old liner shape.

Do you supply one piece or a full engine set?

Topvelsun can support single-piece repair orders and bulk quantity inquiries depending on stock and customer requirements. Please send your required quantity when asking for a quotation.