Counter End Ball Bearing 8-98019664-0 / 8980196640 For ISUZU 4JG2 TBR TFR — OEM-Spec Transmission Bearing, 0.1kg, Japan Origin

The Counter End Ball Bearing with OEM references 8-98019664-0 / 8980196640 is a verified replacement transmission bearing for ISUZU 4JG2 diesel engine applications in the TBR and TFR truck platforms. This is a precision ball bearing positioned at the counter shaft end within the manual transmission assembly, supporting the rotating counter gear and maintaining precise alignment under torque load.

In a manual gearbox, the counter shaft (also called the layshaft) carries the driven gears that mesh with the main shaft gears. The counter end bearing supports one end of this shaft, reducing friction and preventing shaft deflection under load. A worn or failed bearing produces transmission noise, vibration, and potential gear misalignment — eventually leading to costly gearbox damage if not addressed.

This bearing is confirmed with Japan origin (per one supply channel) and is available as an OEM-specification aftermarket component under the CHINA AFTERMARKET brand designation. The net weight is 0.1 kg, and the HS code is 848210900. The bearing is also referenced by the ISUZU factory number 8-98019664-0 and is grouped with 8980196641 and 8973595710 as interchangeable or related references.

This is the counter end bearing — it supports the counter shaft / layshaft, not the mainshaft or input shaft. Bearing references for the mainshaft end (e.g., 8941738630 / BEARING; BAL MAINSHAFT END) and input shaft are different parts and are not interchangeable with this counter end bearing.

This bearing is associated with manual transmission applications in the 4JG2 TBR/TFR platform. Confirm the transmission type and code before ordering — automatic transmission applications use different bearing configurations.

This is a ball bearing (deep groove type, per the "BALL" designation). It is not a needle roller bearing, taper roller bearing, or plain bushing. The ball bearing design provides low friction and high-speed capability for the counter shaft application.

• VerifiedPart Name & Function: "BEARING; BALL, COUNTER END" — confirmed by multiple supplier catalogs and technical listings. The part is explicitly identified as the counter end ball bearing for the ISUZU 4JG2 TBR TFR application.
• VerifiedVehicle & Engine Coverage: ISUZU 4JG2 TBR TFR — confirmed across multiple independent supplier listings. Related coverage includes TFR16 4ZD1 (per one factory-direct listing, indicating platform overlap).
• VerifiedNet Weight: 0.1 kg — confirmed by technical product data for the 8980196640 reference.
• VerifiedOrigin: Japan — confirmed by one supply channel listing.
• VerifiedHS Code: 848210900 — confirmed by technical product data, classifying the part under ball bearings.
• VerifiedCross-Reference Density: 8980196641, 8973595710, 8971043800 are consistently grouped with 8980196640 / 8-98019664-0 as interchangeable or related references across multiple supplier catalogs.
• VerifiedDimensions (Packaging): 4.5 × 4.5 × 1.3 cm (actual size reference) and 8 × 7.5 × 2 cm (packaging size reference) — confirmed by factory-direct data.
• VerifiedWarranty Reference: 6 months (factory-direct reference) — confirm tier at inquiry.
• VerifiedMOQ: 1 pc — sample-friendly ordering available.
• VerifiedSupply Capacity: 1,000 pcs/month — confirmed by supplier data.
• AttentionPrecise Bearing Dimensions (Bore / OD / Width) NOT Publicly Disclosed: The accessible supplier data does not publish the inner bore diameter, outer diameter, or width of the bearing itself. The available dimensions (4.5 × 4.5 × 1.3 cm) appear to be packaging or overall size references, not the bearing's boundary dimensions. Confirm the bore/OD/width against the original bearing or the transmission parts catalog before ordering.

• Transmission whine or growl that changes with speed: A worn counter end bearing produces a continuous humming, whining, or growling noise that varies with vehicle speed and may change pitch under acceleration or deceleration.
• Vibration through the gear lever or floor: Bearing degradation allows the counter shaft to deflect or oscillate, transmitting vibration through the gearbox and into the cabin.
• Difficulty engaging or disengaging gears: Bearing wear can cause shaft misalignment, leading to poor gear mesh and hard shifting.
• Metal particles in the transmission fluid: Advanced bearing wear produces metallic debris that circulates in the gear oil — a sign of imminent failure.
• Rumbling or grinding noise at idle in neutral: A worn counter end bearing may produce noise even when the vehicle is stationary in neutral, as the counter shaft continues to rotate with the engine.
• Oil leak at the counter shaft end: A failed bearing seal or excessive shaft play can allow transmission fluid to escape at the bearing retainer area.

• Counter end vs. mainshaft end is the first check: This is the counter end bearing. The mainshaft end bearing uses a different reference (e.g., 8941738630 / BEARING; BAL MAINSHAFT END). Do not interchange counter end and mainshaft end bearings — the bore, OD, and load characteristics differ.
• Transmission code matters: While the 4JG2 TBR/TFR application is confirmed, different manual transmission variants may use different bearing sizes. Confirm the gearbox code or measure the original bearing before ordering.
• Precise bearing dimensions are not published: The available size references (4.5 × 4.5 × 1.3 cm) appear to be packaging or overall dimensions, not the bearing's bore/OD/width. Measure the original bearing or consult the transmission parts catalog for the exact boundary dimensions before ordering.
• 4JG2 vs. 4ZD1: The factory-direct listing associates 8-98019664-0 with both 4JG2 (TBR/TFR) and TFR16 4ZD1. Confirm the engine code and VIN before ordering, especially for mixed-fleet applications.

1. 1Confirm the required part first: Verify the original bearing's bore, OD, and width against the replacement. Confirm that the bearing is the counter end unit (not mainshaft end or input shaft).
2. 2Remove the gearbox: Support the gearbox with a transmission jack and separate it from the engine. Drain the transmission fluid.
3. 3Disassemble the gearbox: Remove the extension housing, center plate, and counter shaft as required to access the bearing. Note the orientation and any shims or snap rings.
4. 4Remove the old bearing: Use a bearing puller or press to extract the bearing from the shaft or housing. Do not hammer on the bearing or shaft — this can damage the raceway or shaft surface.
5. 5Clean and inspect: Clean the bearing bore and shaft surface. Inspect for wear, scoring, or discoloration. A damaged shaft or housing bore will cause premature bearing failure.
6. 6Install the new bearing: Press or drive the new bearing into position using the appropriate driver on the bearing race (not the balls or seal). Do not apply force through the rolling elements.
7. 7Reassemble the gearbox: Reinstall the counter shaft, center plate, and extension housing. Verify that the shaft rotates freely without binding.
8. 8Refill and test: Refill with the specified transmission fluid. Road-test the vehicle, listening for abnormal noise and checking for smooth gear engagement.

• Change transmission fluid according to the ISUZU schedule (typically every 40,000–60,000 km). Degraded fluid accelerates bearing wear.
• Monitor for transmission noise at every service — early detection of bearing whine prevents gearbox damage.
• Avoid aggressive shifting and overloading — shock loads accelerate bearing fatigue.
• Inspect the counter shaft end play during any gearbox overhaul — excessive play indicates bearing wear.

• Standard packing: Neutral packaging or customer-requested packaging. Packaging size reference: 8 × 7.5 × 2 cm. Bulk export carton available.
• Package contents: 1 × Counter End Ball Bearing. Snap rings, shims, and transmission fluid are not included unless explicitly stated — confirm at inquiry.
• Set options: Single bearing (standard) / bearing + snap ring kit (where available) — specify at inquiry.
• Suitable for: ISUZU TBR / TFR transmission repair shops, commercial truck fleet maintenance departments, gearbox rebuilders, spare parts distributors, and export wholesalers.