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Details
| Specification | Value |
|---|---|
| Brand | HERTH+BUSS JAKOPARTS |
| MPN | j3304023 |
| Category | Brake rotor |
| Height [mm] | 34 mm |
| Brake Disc Thickness [mm] | 23 mm |
| Minimum thickness [mm] | 21 mm |
| Inner Diameter [mm] | 152 mm |
| Outer Diameter [mm] | 260 mm |
| Bolt Hole Circle Ø [mm] | 114.3 mm |
| Hub Diameter [mm] | 92 mm |
| fulfils ECE norm | E1 90R-02C0064/0296 |
OE numbers (10)
Search by this OE number to find compatible parts
- HONDA—42510-SM4-000
- HONDA—42510-SM4-010
- HONDA—42510-SM4-020
- HONDA—45251-SM4-000
- HONDA—45251-SM4-010
- HONDA—45251-SM4-020
- HONDA—45251-SM4-020HS
- HONDA—45251-SM4-320
- HONDA—45251-SN7-E40
- ROVER—GBD90836
Where this part fits
Original-fit position for OE 45251SM4020.
About this product
HERTH+BUSS JAKOPARTS brake disc (J3304023) is precision-machined from high-grade grey cast iron for uniform heat dissipation and resistance to thermal cracking under heavy braking. Key dimensional data — Height [mm]: 34 mm, Brake Disc Type: Cast Iron, Brake Disc Thickness [mm]: 23 mm, Minimum thickness [mm]: 21 mm — ensures the rotor geometry meets OEM tolerances for run-out, thickness, and parallelism right out of the box. Compatible with HONDA, ROVER vehicles; the hub-centric bore and bolt-circle pattern match the original specification exactly. Direct replacement for OE references: 0311015990, 09493, 09.5290.10, 09.5290.14 and 204 more. HERTH+BUSS JAKOPARTS rotors are checked for surface hardness and dynamic balance before dispatch, keeping braking distances predictable throughout the service life of the disc. Brake discs generally last 50,000–70,000 miles, though this varies with driving habits, terrain, and pad compound — heavy urban driving or towing shortens disc life considerably. Warning signs of worn discs include visible scoring or lip formation on the friction surface, vibration through the steering wheel under braking, and a persistent grinding noise even with new pads fitted. Disc replacement is an intermediate DIY task; you will need a torque wrench, a breaker bar (some hub-to-disc retaining screws seize over time), and a jack with axle stands — budget 1–2 hours per axle. When selecting brake discs, check that the disc type (vented or solid) matches the original, and look for a protective anti-corrosion coating on the hub and non-friction surfaces to prevent rust jacking. Always replace discs in pairs (both sides of the same axle) to maintain even braking balance, and bed in new discs with the manufacturer's recommended gentle-braking procedure for the first 200 miles. Every part is dispatched with tracked delivery and a 14-day money-back guarantee with hassle-free returns.
Brake rotor buying guide
Why replace this part?
Brake discs work together with brake pads to bring your vehicle to a stop. Over time, discs wear down, develop grooves, or can warp from heat. Worn or warped discs reduce braking efficiency and can cause dangerous vibrations at speed.
Signs you need a replacement
- Pulsating brake pedal
- visible grooves or scoring on the disc surface
- vibration during braking
- grinding noise even with new pads
- disc thickness below minimum specification
When to replace
Every 50,000–80,000 miles. Always measure disc thickness during pad changes — most discs have a minimum thickness stamped on the hub.
Suitable cars
Equivalent products (200)
Show all 200 OE numbers
Brake rotor HERTH+BUSS JAKOPARTS J3304023 — compatible car models
| Car models | HONDA: ACCORD IV (CB), ACCORD IV Coupe (CB, CC), ACCORD V (CC, CD), ACCORD V (CE, CF, CD); ROVER: 600 I (RH) |
|---|---|
| Engines | 1.8; 2.0 i 16V (CC1); 2.0 i (CD4); 1.8 i (CE7); 618 i/Si |
| Year of manufacture | 1989-2000 |
| Manufacturer article number (MPN) | J3304023 |
| OE part numbers | 42510-SM4-000, 42510-SM4-010, 42510-SM4-020, 45251-SM4-000, 45251-SM4-010, 45251-SM4-020, 45251-SM4-020HS, 45251-SM4-320, 45251-SN7-E40, GBD90836 |
Compatibility check
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Please wait while we load vehicle compatibility information.Description and what's included
HERTH+BUSS JAKOPARTS j3304023 Brake rotor. Bolt Hole Circle Ø [mm]: 114,3 mm. Brake Disc Thickness [mm]: 23 mm. Brake Disc Type: 3. fulfils ECE norm: E1 90R-02C0064/0296. Height [mm]: 34 mm. Hub Diameter [mm]: 92 mm. Inner Diameter [mm]: 152 mm. Minimum thickness [mm]: 21 mm
- 1x Brake disc
Shipping, returns, warranty
Free UK delivery on orders over £50.00. Tracked standard shipping.
- Standard delivery: 4–8 business days
- Order before 5pm — ships the next working day
- Free returns within 14 days
- All parts backed by manufacturer warranty
Warranty: 12-month manufacturer warranty on all parts. 14-day money-back guarantee if the part doesn't fit your vehicle.
Frequently Asked Questions
Is this Brake rotor compatible with my car?
This Brake rotor fits HONDA, ROVER vehicles. Use the vehicle selector at the top of the page to check exact compatibility — enter your car's make, model, and engine for a confirmed fitment match. All fitment data is verified through TecDoc.
What specifications does this HERTH+BUSS JAKOPARTS Brake rotor have?
This HERTH+BUSS JAKOPARTS Brake rotor has the following specifications: Height [mm]: 34 mm; Brake Disc Type: 3; Brake Disc Thickness [mm]: 23 mm; Minimum thickness [mm]: 21 mm; Inner Diameter [mm]: 152 mm; Outer Diameter [mm]: 260 mm. Check the full specifications table above for complete details.
What OE part numbers does this Brake rotor replace?
This Brake rotor replaces OE part numbers: 42510-SM4-000, 42510-SM4-010, 42510-SM4-020, 45251-SM4-000, 45251-SM4-010, 45251-SM4-020, 45251-SM4-020HS, 45251-SM4-320 and 2 more. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Brake rotor cost?
Brake rotor prices vary depending on brand, specifications, and vehicle compatibility. Check the current price above for this HERTH+BUSS JAKOPARTS Brake rotor. All parts come with our 14-day money-back guarantee.
How do I know when to replace my Brake rotor?
Watch for pulsating brake pedal, visible grooves or scoring on the disc surface, vibration during braking, or a grinding noise. Brake discs typically last 50,000-80,000 miles but should be measured for minimum thickness during pad changes.
What tools do I need to replace a Brake rotor?
Tools needed: floor jack and axle stands, lug wrench, 7mm hex / Torx caliper bolt socket, pry bar or disc puller, wire brush, brake cleaner, copper grease, torque wrench (wheel bolts to manufacturer spec). Difficulty: Moderate DIY. Safety warning: Do not drive the vehicle until both discs on the same axle are replaced and the brakes have been bedded in. Brake dust may contain harmful particles -- wear a dust mask.
Can I use this part as a replacement for OE 42510-SM4-000?
Yes, this HERTH+BUSS JAKOPARTS Brake rotor is a direct replacement for OE part number 42510-SM4-000. It is manufactured to meet or exceed original equipment specifications, ensuring proper fitment and performance. All cross-reference data is verified through TecDoc.
Related categories
Common OE numbers for this part
Common original equipment numbers linked to stocked alternatives.
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