Piston rings TP 32421STD 87mm 1.2/1.2/2.5 Honda Accord VII 2.4

TPR 32421STD Piston Rings 87mm – Honda Accord VII 2.4

The TPR 32421STD piston ring set (Teikoku Piston Rings) is a high-quality Japanese solution for restoring compression and reducing oil consumption in Honda Accord VII 2.4 petrol engines. TPR is a Japanese piston ring manufacturer supplying rings for original factory installation in Honda engines (OEM), which means factory-level quality, precise fit and long service life.

Product overview

This piston ring set is designed for 87 mm pistons with ring widths 1.2 / 1.2 / 2.5 mm. It is a perfect choice when rebuilding the engine or refreshing a tired K24 unit that has started to burn oil or has visible loss of compression. High-precision machining and carefully selected materials ensure stable performance in everyday use as well as during dynamic driving.

Key features and benefits

• OEM-level quality from Japan: TPR (Teikoku Piston Rings) is a Japanese piston ring manufacturer that supplies rings for original factory installation in Honda engines. You get factory-level quality, correct clearances and reliable sealing.
• Precise fit for 87 mm pistons: Standard size STD, ring dimensions 1.2 / 1.2 / 2.5 mm ensure proper cooperation with OEM pistons and cylinder liners in the 2.4 petrol engine.
• Improved compression and performance: Fresh rings help restore compression, which translates into better throttle response, more stable idle and overall smoother engine operation.
• Reduced oil consumption: Correctly seated oil control and compression rings reduce oil burning and minimise carbon build-up in the combustion chamber.
• Durability and reliability: Quality materials and modern ring profiles provide long service life, even in engines that see regular motorway use or spirited driving.

Application – Honda Accord VII 2.4

The TPR 32421STD piston rings are intended for Honda Accord VII 2.4 petrol engines used in European-market cars.

• Honda Accord VII (2003–2008) – 2.4 petrol (K24 series engine)

Always compare the engine code and technical data with the service manual or EPC before ordering, especially in case of swapped or imported engines.

Technical data

• Manufacturer: TPR – Teikoku Piston Rings
• Part number: 32421STD
• Diameter: 87 mm
• Ring widths: 1.2 mm / 1.2 mm / 2.5 mm
• Size: STD (standard)
• Engine type: 2.4 petrol (K24 series)
• Country of origin: Japan
• Replaces Honda part numbers: 13011-RBB-006, 13011-RBB-004

Why choose TPR piston rings for your Accord?

By choosing TPR 32421STD you are investing in proven Japanese quality used by Honda on the production line. Correct ring geometry, reliable sealing and resistance to wear help the engine maintain its performance for many thousands of kilometres. This is an excellent option both for professional engine rebuilders and enthusiasts who take care of their Accord VII 2.4 and want to keep it in top mechanical condition.

If you are rebuilding the engine, we recommend combining this set with fresh gaskets, stem seals and correct honing of the cylinders according to the workshop manual.

FAQ – piston rings TPR 32421STD 87mm 1.2/1.2/2.5

Does this set fit all Honda Accord VII 2.4 engines?
The set is intended for 2.4 petrol K24 engines used in Honda Accord VII (European market). Before ordering, check the engine code, piston diameter (87 mm) and ring sizes in the service manual or parts catalogue.

Is this an original Honda kit?
This is a TPR (Teikoku Piston Rings) set – a Japanese manufacturer that supplies piston rings for original factory installation in Honda engines. It is not sold in Honda packaging, but the quality and fit correspond to OEM level.

Do I need to hone the cylinders when fitting new rings?
In most cases a proper light honing according to the workshop procedure is recommended, so that the new rings can seat correctly. The scope of work should always be assessed by the engine builder after measuring wear and out-of-round.

Can I install these rings myself?
Fitting piston rings requires precision, clean working conditions and correct measurements (end gap, side clearance, cylinder wear). If you do not have experience with engine rebuilds, we recommend having the job carried out by a professional workshop.