Clutch Pressure Plate Assembly 5-87610087-0 8-94435011-0 For ISUZU TFR55 TFS55 4JB1 2.8D — Ø225mm, 154mm Inner, 251mm PCD, 4.5kg

A verified direct-fit clutch pressure plate assembly (clutch cover) for the ISUZU TFR55 / TFS55 pickup platform equipped with the 4JB1 2.8L diesel engine. This diaphragm-spring pressure plate clamps the clutch disc against the flywheel to transmit engine torque to the gearbox and releases it when the pedal is depressed. Cross-application extends to the 4JA1 (2.5L) engine and sister vehicles including Holden Rodeo / Jackaroo and Opel Campo variants.

Defined by its critical dimensional set — 225 mm outside diameter, 154 mm inner diameter, and 251 mm pitch circle diameter (PCD) — the assembly matches the TFR/TFS flywheel bolt pattern and clutch disc friction radius. Supplied under IZUMI branding with ISO/TS16949 certification, a reference net weight of 4.5 kg, and HS code 870893000.

• Dimensional set verified: Outside diameter 225 mm / inner diameter 154 mm / PCD 251 mm — confirmed by Yiparts for OE 8-94435-011-0.
• Cross-brand diameter confirmation: LuK 123 0218 10 and Sachs 3082 688 001 both specify a 225 mm diameter for the same ISUZU OE group (8944350110 / 8944350111 / 8944086420).
• Brand & quality reference verified: IZUMI brand, ISO/TS16949 certification, net weight 4.5 kg, HS code 870893000 — confirmed by the Dutch AutoPart-Masters supplier listing.
• Vehicle & engine coverage verified: ISUZU TFR55 / TFS55 (4JB1) confirmed across multiple supplier portals; 4JA1 also listed as compatible. Holden Rodeo / Jackaroo (TF, 2.8 TD / 4JB1-T) and Opel Campo are cross-referenced through LuK/Sachs catalog data.
• Associated components identified: Clutch disc 8-94437-485-0 (Ø225 mm, inner 150 mm, hub profile 23.1×25.6-24N) and multiple release bearing references (8-94379-499-0, 54TKA3501, 5313140010, 8973165910) are documented for the 4JB1 / 4JA1 clutch system.
• OE cross-reference density verified: 8944350110, 8944350111, 5-87610087-0, 5876100870, 8-94435-011-0, 8-94435-011-1, 8944086420, 94435011, plus OPEL 43 01 825 / R94435011, VAUXHALL 94435011 / R91149501, and BEDFORD 94435011 / 43 01 825 — confirmed across Yiparts, LuK, Sachs, and AutoPart-Masters.

• Clutch slips under load: Engine RPM rises without a corresponding vehicle speed increase, especially on inclines or under acceleration — the diaphragm spring has lost clamping force or the friction surface is worn.
• Hard or high pedal engagement: Diaphragm fingers are worn or the release mechanism is binding, requiring excessive pedal effort or a very high engagement point.
• Chatter or judder during engagement: Uneven friction surface wear or a warped diaphragm spring causes vibration when the clutch engages from a stop.
• Clutch drag / difficulty selecting gears: A distorted or cracked pressure plate can prevent full disengagement, causing gear clash and hard shifting.
• Burning smell after normal driving: A slipping pressure plate generates excessive heat, producing a persistent burning odor even without aggressive driving.
• Visible cracks, heat discoloration, or worn friction surface: Direct inspection during gearbox removal reveals the condition — any cracking or blue heat marks indicate replacement is required.

• 225 mm OD is the first dimensional check: This pressure plate is 225 mm outside diameter. A 230 mm variant exists for some 4J applications (LuK 623 1629 60 kit). Measure the original pressure plate OD or confirm the flywheel PCD (251 mm) before ordering — a mismatched diameter will not bolt to the flywheel correctly.
• Pressure plate only — clutch disc and release bearing are separate: Standard IZUMI packaging is 1PCS (pressure plate only). For a complete clutch replacement, order the clutch disc 8-94437-485-0 (Ø225 mm, 24 spline) and the correct release bearing for the specific transmission (references include 8-94379-499-0, 54TKA3501, 5313140010, 8973165910).
• 4JB1 vs. 4JB1-T: The naturally aspirated 4JB1 and turbocharged 4JB1-T share the same clutch architecture on the TFR/TFS platform, but confirm the engine code and original pressure plate marking before ordering. Some 4JB1-T applications may use a different clamp load or disc specification.
• Cross-brand coverage (Holden / Opel / Vauxhall / Bedford): The OPEL / VAUXHALL / BEDFORD OE references (43 01 825, R94435011, R91149501) confirm this pressure plate is used on Opel Campo, Vauxhall Brava, and Bedford variants — making it a cross-brand SKU for distributors serving both ISUZU and GM/Opel light commercial fleets.

1. Confirm the required components first: Verify that the pressure plate is 225 mm and matches the flywheel PCD (251 mm). Confirm the clutch disc (8-94437-485-0) and release bearing references match the transmission fitted to the vehicle.
2. Inspect the flywheel: Before installing the new pressure plate, check the flywheel friction surface for cracks, heat discoloration, or warping. A damaged flywheel must be resurfaced or replaced — installing a new pressure plate against a worn flywheel causes chatter and premature failure.
3. Clean and align: Clean the flywheel bolt holes and the pressure plate mounting surface. Use a clutch alignment tool to center the disc against the flywheel before tightening the pressure plate bolts.
4. Torque in sequence: Tighten the pressure plate bolts evenly in a cross pattern to the workshop manual specification. Uneven tightening distorts the diaphragm spring and causes clutch drag or incomplete release.
5. Check release bearing and fork: Inspect the release bearing, fork, and pivot for wear. Replace the release bearing as a matter of course during clutch service — reusing an old bearing with a new pressure plate is a false economy.
6. Verify clutch release and engagement: After reassembly, check that the clutch fully disengages (no drag with the pedal depressed) and engages smoothly without chatter.
7. Road test: Drive the vehicle through a range of load conditions, confirming no slip under acceleration and smooth engagement from a stop.

• Avoid resting your foot on the clutch pedal while driving — this causes continuous release bearing contact and premature wear.
• Do not slip the clutch excessively on inclines or when towing — excessive heat accelerates pressure plate diaphragm fatigue and flywheel damage.
• Inspect the clutch system at every major service or if pedal feel changes — slipping, chatter, or a high engagement point are early warning signs.
• Replace the pressure plate, disc, and release bearing as a set when any one component fails — mixing new and worn components leads to repeat labor and uneven wear.

• Standard packing: Neutral box / color box / customer-branded packaging; bulk export carton available.
• Package contents: 1 × Clutch Pressure Plate Assembly (1PCS). Clutch disc, release bearing, and mounting bolts are NOT included unless explicitly stated — confirm exact package contents at inquiry.
• Set options: Pressure plate only (standard) or complete clutch kit (pressure plate + disc 8-94437-485-0 + release bearing) — specify at inquiry.
• Suitable for: ISUZU TFR/TFS clutch repair shops, Holden Rodeo / Opel Campo service providers, light commercial fleet maintenance departments, spare parts distributors, and export wholesalers serving Southeast Asia, the Middle East, Africa, Latin America, and Europe.
• Related parts available: Clutch disc (8-94437-485-0), release bearings (8-94379-499-0 / 54TKA3501 / 5313140010 / 8973165910), clutch alignment tools, and complete 4JB1 / 4JA1 clutch kits.