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DJ Rock PR638 Engine Piston Ring Set
| Brand | DJ Rock PR638 |
|---|---|
| Grade Type | Premium |
| Top Compression Ring Thickness | 1.2 |
| Second Compression Ring Thickness | 1.2 |
| Oil Ring Thickness | 2.5 |
| Bore Diameter | 88.9 |
| Fits | Nissan and Suzuki · 29 vehicles |
Premium grade. Built for engine sealing, oil control, and compression retention.
Precision fit. 88.9 mm bore with 1.2 mm compression rings and a 2.5 mm oil ring.
OEM quality standards. Manufactured with wear-resistant materials and advanced surface treatments.
Cross-references Hastings Piston Rings 2C5099 for the same application. See all 1.
Engine piston ring set for Nissan and Suzuki
DJ Rock PR638 is a premium engine piston ring set built to restore the seal between the piston and cylinder wall. It is specified for complete-engine service applications and is listed for Nissan Frontier, Nissan Altima, Nissan Sentra, and Suzuki Equator fitments.
Key features
- Precision-engineered ring set for compression sealing, oil control, and heat transfer.
- Premium-grade construction with cast iron or steel alloy materials.
- Surface treatments such as chrome plating, molybdenum coating, or nitriding help reduce friction and wear.
- 88.9 mm bore diameter with 1.2 mm top compression, 1.2 mm second compression, and 2.5 mm oil ring thickness.
- Built to meet or exceed OEM quality standards.
Detailed description
The DJ Rock PR638 piston ring set is designed for internal combustion engine rebuild and repair work where consistent cylinder sealing is required. By combining top compression rings, second rings, and oil control rings, this set supports compression retention, oil regulation, and thermal stability across the engine. It is a fitment-based solution for 2002-2006 Nissan Altima, 2002-2006 Nissan Sentra, 2005-2015 Nissan Frontier, 2016-2019 Nissan Frontier, and 2009-2012 Suzuki Equator applications. The PR638 part number is also cross-referenced to Hastings Piston Rings 2C5099 for the same application.
What it is used for
- Restoring cylinder compression after ring wear.
- Reducing oil consumption caused by worn oil control rings.
- Improving sealing in engines with blow-by concerns.
- Supporting rebuilds where ring thickness and bore size must match the engine specification.
Installation notes and tips
Verify bore diameter, ring thickness, and engine application before installation. Clean the piston ring grooves thoroughly and inspect the cylinder walls for wear or scoring before assembly. Follow the engine builder’s ring gap and break-in procedures for the specific application.
Quality assurance
DNJ Engine Piston Ring Sets are manufactured to meet or exceed OEM quality standards and use materials selected for wear resistance and thermal stability.
| Year | Make | Model | Liters | Cylinders | Notes |
|---|---|---|---|---|---|
| 2019 | Nissan | Frontier | 2.5L | L4 | 1.2x1.2x2.5 |
| 2018 | Nissan | Frontier | 2.5L | L4 | 1.2x1.2x2.5 |
| 2017 | Nissan | Frontier | 2.5L | L4 | 1.2x1.2x2.5 |
| 2016 | Nissan | Frontier | 2.5L | L4 | 1.2x1.2x2.5 |
| 2015 | Nissan | Frontier | — | — | Set Services Complete Engine; 1.2x1.2x2.5 |
| 2014 | Nissan | Frontier | — | — | Set Services Complete Engine; 1.2x1.2x2.5 |
| 2013 | Nissan | Frontier | — | — | Set Services Complete Engine; 1.2x1.2x2.5 |
| 2012 | Nissan | Frontier | — | — | Set Services Complete Engine; 1.2x1.2x2.5 |
| 2012 | Suzuki | Equator | — | — | Set Services Complete Engine; 1.2x1.2x2.5 |
| 2011 | Nissan | Frontier | — | — | Set Services Complete Engine; 1.2x1.2x2.5 |
| 2011 | Suzuki | Equator | — | — | Set Services Complete Engine; 1.2x1.2x2.5 |
| 2010 | Nissan | Frontier | — | — | Set Services Complete Engine; 1.2x1.2x2.5 |
| 2010 | Suzuki | Equator | — | — | Set Services Complete Engine; 1.2x1.2x2.5 |
| 2009 | Nissan | Frontier | — | — | Set Services Complete Engine; 1.2x1.2x2.5 |
| 2009 | Suzuki | Equator | — | — | Set Services Complete Engine; 1.2x1.2x2.5 |
| 2008 | Nissan | Frontier | — | — | Set Services Complete Engine; 1.2x1.2x2.5 |
| 2007 | Nissan | Frontier | — | — | Set Services Complete Engine; 1.2x1.2x2.5 |
| 2006 | Nissan | Altima | — | — | Set Services Complete Engine; 1.2x1.2x2.5 |
| 2006 | Nissan | Frontier | — | — | Set Services Complete Engine; 1.2x1.2x2.5 |
| 2006 | Nissan | Sentra | — | — | Set Services Complete Engine; 1.2x1.2x2.5 |
| 2005 | Nissan | Altima | — | — | Set Services Complete Engine; 1.2x1.2x2.5 |
| 2005 | Nissan | Frontier | — | — | Set Services Complete Engine; 1.2x1.2x2.5 |
| 2005 | Nissan | Sentra | — | — | Set Services Complete Engine; 1.2x1.2x2.5 |
| 2004 | Nissan | Altima | — | — | Set Services Complete Engine; 1.2x1.2x2.5 |
| 2004 | Nissan | Sentra | — | — | Set Services Complete Engine; 1.2x1.2x2.5 |
| 2003 | Nissan | Altima | — | — | Set Services Complete Engine; 1.2x1.2x2.5 |
| 2003 | Nissan | Sentra | — | — | Set Services Complete Engine; 1.2x1.2x2.5 |
| 2002 | Nissan | Altima | — | — | Set Services Complete Engine; 1.2x1.2x2.5 |
| 2002 | Nissan | Sentra | — | — | Set Services Complete Engine; 1.2x1.2x2.5 |
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