Front Right Brake Caliper Assembly 8980779960 8-98077996-0 For ISUZU D-MAX 2012+ TFS85 TFS86 MU-X — Twin-Piston AKEBONO 45mm, Without Mount Bracket, OEM-Spec Aftermarket

The Front Right Brake Caliper Assembly with OEM references 8980779960 / 8-98077996-0 is a verified replacement brake component for the ISUZU D-MAX (2012+ generation, TFS85/TFS86 platform) and MU-X SUV applications. This is the front right-hand (RH) hydraulic clamping unit that straddles the front brake disc and converts hydraulic pressure from the master cylinder into mechanical force, driving the brake pads against the rotor to decelerate or stop the vehicle.

The caliper is confirmed as a twin-piston (2-piston) design with a 45 mm piston diameter and is part of the AKEBONO brake system used on the D-MAX 2012+ and MU-X platforms. ISUZU's official parts catalogue describes it as "CALIPER FRT DI — POSITION: R" (Front Disc Caliper — Right), confirming the right-hand position. Euro4x4parts explicitly states it is "Supplied complete without mount bracket", meaning the original bracket or a separately sourced bracket is required for installation.

The caliper body is manufactured from grey cast iron, with a reference weight of approximately 3.88–4.08 kg depending on the supplier and whether accessories or a deposit core are included. It is widely cross-referenced under RIDEX 78B1543, FERODO FCL695700, BREMBO F_34_007, MAPCO 144195, and Blue Print ADBP450225, all confirming the 45 mm twin-piston AKEBONO specification and the front right position.

• Position Verified: Front Right (RH) — confirmed by ISUZU official parts catalogue ("POSITION: R"), Euro4x4parts ("Front - right side"), and BREMBO ("Posizione Right").
• Piston Configuration Verified: Twin-Piston (2-piston), Ø 45 mm — confirmed by RIDEX 78B1543 ("2-pistons", "Diametre du piston [mm]: 45"), FERODO FCL695700 ("Diametre du piston 1 [mm]: 45"), and BREMBO F_34_007 ("Diametro pistoni 45 mm", "Numero pistoni 2").
• Brake System Verified: AKEBONO — confirmed by BREMBO F_34_007 ("Sistema frenante AKEBONO") and Euro4x4parts ("Equipment AKEBONO").
• Bracket Inclusion Verified: Without mount bracket — confirmed by Euro4x4parts ("Supplied complete without mount bracket").
• Vehicle Coverage Verified: ISUZU D-MAX I (TFR/TFS, 2003–2012) and D-MAX II (TFR/TFS, 2012+), MU-X (UCS/UCR, 2013+), KB Pick-up (TFS) — confirmed by BREMBO, Blue Print, and bcmbrakecaliper application data.
• Material & Weight Verified: Grey Cast Iron (Fonte grise / Fonte); 3.88 kg net / 4.08 kg gross (FERODO FCL695700).
• Disc Thickness Verified: 27 mm (ventilated disc) — confirmed by RIDEX 78B1543 ("pour epaisseur de disque de frein [mm]: 27").
• Connection Thread Verified: M10 × 1.5 — confirmed by FERODO FCL695700 ("Filetage de raccordement: M10x1,5").
• Cross-Reference Density Verified: 8980779960, 8-98077996-0, 8-98077-996-0, 98077996 are consistently grouped across ISUZU, BREMBO, RIDEX, FERODO, MAPCO, and Blue Print catalogs.

• Brake fluid leak at the caliper body or piston seal: Visible wetness or drips around the caliper, often accompanied by a low brake fluid level — indicates a failed piston seal or corroded piston bore.
• Uneven or accelerated brake pad wear: A sticking caliper piston or seized guide pin causes one pad to wear faster than the other, or the inner pad to wear prematurely.
• Vehicle pulls to one side during braking: A seized or dragging caliper on one side applies uneven braking force, causing the vehicle to pull toward the affected side.
• Brake drag / overheating wheel: A caliper that does not release fully keeps the brake pads in contact with the disc, generating excessive heat, a burning smell, and potential wheel bearing damage.
• Spongy or long-travel brake pedal: Air entering the system through a failed caliper seal reduces hydraulic pressure and produces a soft pedal.
• Visible corrosion or pitting on the piston or caliper bore: Direct inspection during pad replacement reveals surface degradation that prevents proper sealing and piston retraction.

• Position is the first check: This is the front right (RH) caliper. The front left (LH) uses 8980779970 / 8-98077997-0. Do not interchange left and right — the caliper body, bleed screw location, and hose fitting orientation differ.
• D-MAX I vs. D-MAX II: The same caliper reference covers both the late D-MAX I (2006–2012) and D-MAX II (2012+) applications in many catalogs. However, production changes across the model transition may affect guide pin placement or bracket interface. Confirm the vehicle's exact model year and original caliper marking.
• Bracket not included: Euro4x4parts explicitly states "Supplied complete without mount bracket". If the original bracket is serviceable, it can be reused. If it is corroded, cracked, or the guide pins are worn, the bracket must be ordered separately.
• Piston diameter is 45 mm: The 44.4 mm figure from Febi and Blue Print is a measurement tolerance, not a different physical specification. Do not substitute a 44.4 mm piston — the hydraulic ratio and clamping force must match the original 45 mm specification.

1. Confirm the required part first: Verify that the original caliper is the front right unit and that the vehicle is a D-MAX I/II or MU-X. Confirm whether a mounting bracket is required (this caliper does not include one).
2. Safety first: Park on level ground, engage the parking brake, and chock the rear wheels. Loosen the front wheel lug nuts before raising the vehicle. Support the front corner securely on jack stands.
3. Disconnect the brake hose: Place a drain pan underneath, disconnect the brake hose from the caliper (M10 × 1.5 connection), and plug the hose immediately to prevent contamination and fluid loss.
4. Remove the caliper: Remove the mounting bolts (or slide pins) securing the caliper to the bracket. Support the caliper weight to avoid stressing the hose.
5. Inspect the bracket and slide pins: With the caliper removed, inspect the mounting bracket and slide pins for wear, corrosion, or elongation. Replace if damaged — a worn bracket will cause uneven pad wear and caliper drag.
6. Install the new caliper: Position the 8980779960 caliper onto the original bracket. Install the mounting bolts or slide pins and torque to the workshop manual specification. Do not over-torque — the caliper body can distort.
7. Reconnect the brake hose: Connect the hose to the caliper and tighten the banjo bolt or flare nut to specification. Use new copper washers where applicable.
8. Bleed the brake system: Fill the reservoir with DOT 3 or DOT 4 brake fluid and bleed the front circuit until clear, bubble-free fluid flows from the caliper bleeder screw.
9. Check for leaks and pedal feel: Pump the brake pedal to seat the pads and check for leaks at the hose connection and bleeder screw. The pedal should be firm and should not sink under sustained pressure.
10. Road test: Test drive at low speed, checking for even braking, no pull, and absence of drag or abnormal noise before returning the vehicle to service.

• Inspect the caliper and brake pads at every service or every 20,000–30,000 km — check for leaks, piston seizure, and even pad wear.
• Lubricate the slide pins with high-temperature brake grease at every pad replacement — dry or corroded pins are a leading cause of caliper drag.
• Replace the brake fluid every 2 years or according to the ISUZU schedule — degraded fluid accelerates caliper piston seal wear.
• Inspect the caliper dust boots for cracks or tears — a compromised boot allows water and dirt to enter the piston bore, causing corrosion and leakage.

• Standard packing: Neutral carton or customer-requested packaging.
• Package contents: 1 × Front Right Brake Caliper Assembly (without mount bracket). Brake pads, mounting bracket, slide pins, brake hose, and brake fluid are not included unless explicitly stated — confirm exact package contents at inquiry.
• Set options: Caliper only (standard, without bracket) / caliper + bracket kit (subject to separate bracket availability) — specify at inquiry.
• Suitable for: ISUZU D-MAX / MU-X / KB brake system repair shops, light commercial and SUV fleet maintenance departments, spare parts distributors, and export wholesalers serving Southeast Asia, the Middle East, Africa, and Latin America.
• Related parts available: Front left caliper (8980779970 / 8-98077997-0), brake pads, brake discs, caliper repair kits, slide pins, mount brackets, and brake fluid for the D-MAX 2012+ / MU-X platform.