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Toyota Hilux RN85R Cat-Back Muffler & Tailpipe BM4307 / M7785 – 2.4L 22R LWB 2WD (1990–1997)
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Toyota Hilux RN85R 2.4 22R 1990-1997 Factory Fit Muffler Tailpipe Assembly [BM3892 / M5760] Australian Made

$295.00
Tax included

Toyota Hilux RN85R Cat-Back Muffler & Tailpipe BM4307 / M7785 – 2.4L 22R LWB 2WD (1990–1997)

BM4307 / M7785 Cat-Back Rear Muffler & Tailpipe Assembly is an Australian-made direct-fit replacement exhaust designed to suit Toyota Hilux RN85R Long Wheelbase 2WD models fitted with the 2.4L 22R petrol engine built from August 1990 to September 1997.

Manufactured to provide factory-style fitment, controlled exhaust noise and dependable everyday performance, this assembly replaces the exhaust system from the catalytic converter rearward. Best Mufflers provides expert advice and shipping across Australia.

Important: This is a large freight item. Please contact us for a freight quote before ordering.

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In Stock

Toyota Hilux RN85R 2.4L 22R LWB 2WD Cat-Back Muffler & Tailpipe Assembly BM4307 / M7785

BM4307 / M7785 Cat-Back Rear Muffler & Tailpipe Assembly is an Australian-made factory-style replacement exhaust designed for Toyota Hilux RN85R Cab Chassis, Pick Up, Double and Regular Cab 2WD models fitted with the 2.4L 22R petrol engine manufactured from August 1988 to August 1990.

This assembly replaces the exhaust system from the catalytic converter rearward and is manufactured to match the original mounting positions, pipe routing and tailpipe location. It is ideal for replacing a rusted, damaged or noisy original exhaust while maintaining factory-style noise levels and reliable everyday performance.

Key Features

  • Australian made
  • Direct-fit cat-back exhaust replacement
  • Designed specifically for Toyota Hilux RN85R 2WD
  • Suitable for the 2.4L 22R petrol engine
  • Includes rear muffler and tailpipe assembly
  • Factory-style mounting positions and pipe routing
  • Restores normal exhaust noise levels
  • Quality steel construction for dependable service life
  • No fabrication required under normal installation conditions

Vehicle Compatibility

  • Make: Toyota
  • Model: Hilux
  • Series: RN85R
  • Drive: 2WD
  • Wheelbase: Long Wheelbase (LWB)
  • Engine: 22R
  • Engine Capacity: 2.4L petrol
  • Build Date: August 1988 to August 1990

What's Included

  • BM4307 / M7785 muffler & tailpipe assembly

Recommended With

  • TYG006 Exhaust flange gasket – available
  • TYR19 Exhaust rubber mounts – available
  • TYR30 Exhaust rubber mount – available
  • Replacement exhaust bolts and fasteners where required

Fitment Notes

  • Designed specifically for Toyota Hilux RN85R Long Wheelbase 2WD models fitted with the 2.4L 22R petrol engine.
  • Build date range: August 1988 to August 1990.
  • This exhaust assembly and replaces the muffler and tailpipe section.
  • Not suitable for 4WD models unless specifically confirmed.
  • We recommend replacing the TYG006 flange gasket when installing the new exhaust.
  • Inspect TYR19 and TYR30 exhaust rubber mounts and replace any that are cracked, stretched or hardened.
  • Lubricate exhaust rubber mounts, bolts and fasteners with WD-40 or a similar penetrating lubricant before removal.
  • Professional installation is recommended where existing exhaust components are heavily corroded.

Freight Information

This is a large freight item. Due to the overall length and size of the muffler and tailpipe assembly, standard website freight calculations may not be suitable.

  • Please contact Best Mufflers for a freight quote before ordering.
  • Freight cost will depend on your delivery location.
  • Delivery to some residential or remote locations may attract additional freight charges.
  • Commercial delivery addresses may provide more economical freight options where available.

Warranty & Compliance

This Australian-made replacement exhaust is manufactured to provide factory-style fitment and reliable long-term service.

  • Covered by the manufacturer's warranty against manufacturing defects.
  • Warranty applies to the supplied exhaust components only.
  • Damage caused by incorrect installation, impact, worn engine mounts or modified exhaust systems is not considered a manufacturing defect.
  • Correct vehicle identification and professional installation are recommended.
  • Verify emissions and registration compliance in your state or territory.

Frequently Asked Questions

Will this exhaust fit my Toyota Hilux RN85R?

This assembly is designed to suit Toyota Hilux RN85R Long Wheelbase 2WD models fitted with the 2.4L 22R petrol engine built from August 1988 to August 1990.

What does cat-back mean?

Cat-back means the exhaust assembly replaces the system from the catalytic converter rearward. This listing includes the rear muffler and tailpipe assembly.

Is this exhaust Australian made?

Yes. This replacement muffler and tailpipe assembly is manufactured in Australia.

Is this a direct-fit replacement?

Yes. It is designed to use the original-style mounting positions and connect to the existing factory exhaust system under normal installation conditions.

Does it fit 4WD Hilux models?

No. This listing is specifically for RN85R Long Wheelbase 2WD applications. Contact us if you require exhaust parts for a 4WD model.

Is the TYG006 gasket included?

The TYG006 gasket is available separately in the product options. We recommend installing a new gasket whenever the exhaust flange is disconnected.

Should I replace the exhaust rubber mounts?

Inspect the TYR19 and TYR30 rubber mounts during installation. Replace any mounts that are cracked, stretched or hardened to help prevent exhaust movement and vibration.

Can this item be shipped?

Yes, however this is a large freight item. Please contact us for a freight quote before ordering so we can confirm the best delivery option for your location.

Do you ship Australia wide?

Yes. Best Mufflers ships exhaust systems and replacement exhaust parts throughout Australia. Freight for this item must be quoted due to its size.

Do you ship to the USA?

International shipping may be possible depending on destination and freight availability; however, due to the size of this assembly, please contact us for a freight quote before ordering.

Customer Support

For phone orders, advice, freight quotes, or part enquiries – contact us:

📞 Call Now: +61 2 9547 3511 ✉️ Email Us

🇦🇺 Best Mufflers
87A Planthurst Road
Carlton NSW 2218 Australia

Mon–Fri 8:00am–5:00pm (by appointment only)

BM4307 / M5760


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