QR Engine Repair
All returns are subject to a 20% restocking fee, for new unused parts - 30days from purchase.
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Gen1 QR25DE OEM Headgasket Kit
Regular Price: $146.71
Special Price $118.41
Gen1 QR25DE OEM Headgasket Kit Includes OEM Nissan Headgasket and headbolts for the Gen1 QR25DE (2002-2006). 2JR also includes the copper grease for the threads of the bolts. NOTE: you will need a E20 torx bit to remove and install the OEM Bolts and a Angle Gauge - both can be added in the options below Headbolt TQ Sequence https://f01.justanswer.com/JACUSTOMERj34ssqqy/2013-03-05_013940_em_01.jpg Learn More -
JE RTR High Comp Piston Set - QR25 (10.8-1)
Regular Price: $713.98
Special Price $699.98
JE High Comp Piston Set - QR25 Fits ALL QR25s / Bore 89.0mm, Stroke 100mm, Rod Length 143mm, Flat Top -0.6cc, Grams 338, Set of 4 Compression Ratio: 10.8:1 JE Pistons are machined by the most advanced CNC machining technologies available. JE forged Pistons are trusted by racers and engine builds for dependability. JE Pistons are compatible with boost and nitrous. Crown requires no deburring or preparation 2618 T6 high tensile forged aluminum JE designs are specifically engineered for extreme applications up to, and including, professional competition. In this environment, the higher compression ratios, highest boost, or heavy nitrous usage necessitate the higher tensile strength 2618 aluminum alloy. Crown design features smooth flowing radii for excellent flame travel. 1.0 x 1.2 x 2.8mm ring widths. .787 x 2.250 straight wall carbon steel wrist pin provided. Pin fitting, wire locks and rings included Compression ratio calculated at .020" deck clearance with .025" thick head gasket Learn More -
Boundary QR25DE Billet Crankshaft Timing Sprocket
$149.90Boundary QR25DE Billet Crankshaft Timing Sprocket Fits ALL QR engines Crankshaft Timing Sprocket by Boundary Pumps®. Billet Crank Sprockets from Boundary follow the same heritage as oil pump gears, manufactured 100% in house with US sourced materials. These sprockets start with a chromoly steel that is 10 times stronger then the OEM powdered metal, hot quenched with a low temper for the highest strength and resistance to wear. more details on - https://www.carid.com/boundary-pumps/crankshaft-timing-sprocket-mpn-qr25de-sp.html All sprockets heat treated to maximum hardness while maintaining toughness Precision CNC machined and broached for accurate fit Dimensions checked after machining and after heat treating for guaranteed fit 80% more cross section versus OEM at the keyway Weighs 30% more then OEM High finish reduces friction and chain vibration New tooth geometry strengthens teeth and keyway Learn More -
Sentra 2.5L Denso Oxygen Sensors (Pair/Single)
Sentra 2.5L Denso Oxygen Sensors (Pair/Single) Select Year 02 through 06. Then Upstream / Downstream or Both Superior Design Maximizes Engine Performance and Fuel Efficiency DENSO's light duty oxygen sensor started to appear on vehicles with the development of fuel injection systems. The basic job of the sensor is to monitor the air fuel mixture under idle, moderate acceleration and cruise conditions. Under heavy acceleration the oxygen sensor goes into "open loop," which basically means that the engine management computer system ignores the oxygen sensor. Oxygen sensors have a smaller range of limits in detecting and adjusting the difference from an optimum air/fuel ratio. Learn More -
QR25 OEM Main Cap Bolt Set
Regular Price: $98.14
Special Price $84.57
QR25 OEM Main Cap Bolt Set Fits ALL QR25 years/models. Comes with 10 Bolts necessary for the install of the mains Learn More -
QR25 Main / Rod Bearing Set w Thrust
Regular Price: $168.40
Special Price $139.14
QR25 Main and Rod Bearing Set with Thrust Washers Fits ALL QR25 engines. Bearings are Japan Made Daido Metal OEM Spec. Thrust Washers are OEM Nissan. Bearings can be ordered in standard, +25, +50, +75 Daido Metal Engine bearings are the mainstay of Daido Metal’s operations, and have been adopted by all Japanese automobile manufacturers, as well as the majors in other countries. We have the leading market share in Japan for plain bearings for engines. Today’s sophisticated, high-technology engines pose demands for high performance and efficiency. Our bearings are also used for the high-speed engine of race cars, including Formula 1, and provide an ultra-high-tech edge in motor sports applications. Learn More -
QR25 OEM Water Pump with Alt Housing
Regular Price: $96.14
Special Price $89.69
QR25 OEM Water Pump with Alt Housing For the Gen1 QR25DE (02-06) Water Pump with the Alternator Housing included. Also comes with the gasket set. Learn More -
Boundary QR25DE Billet Oil Pump Gear Set
$399.00Boundary QR25DE Billet Oil Pump Gear Set Boundary oil pump gears are 100% manufactured in our Dallas, Texas production facility. We start by quenching our chromoly billets from extreme heat and then temper it to tough indestructible core. After machining we apply our ColdFlow surface hardening process and complete it to a Mirror Finish. What does all this give you? It gives you a pump with stability over 9000 RPM, proven in excess of 900whp, with higher efficiency, less friction, and backed by one of the industries best warranty’s. Oil Pump Gear Features Mirror Finished and Surface Hardened Surface Ground gears for the ultimate in fitment and performance Indestructible core Inner and outer gear set included Unique race inspired gerotor design Symmetrical tooth profile elemenates the gears weak spot making our gear sets indestructible Each set hand, machine, and hardness inspected with Blueprinting Report Learn More -
OEM QR25DE Engine Timing Kit
Regular Price: $209.14
Special Price $198.71
Complete Engine timing kit for the Gen 1 QR25DE motor (2002-2006) - fits all Gen 1 QRs OEM Nissan Parts include 1. Left and Right Guide Rails 2. Chain Tensioner 3. Main Chain 4. Exhaust Sprocket 5. Lower Main Sprocket 6. Orings for Upper Pan, Front Cover and Timing Cover Does not include Intake Cam Sprocket/Phaser (can be purchased separately) or the lower chain for the balance shafts - we suggest adding the BSR Kit Learn More -
2002-2006 Hitachi QR25DE Oil Pump / Front Cover
Regular Price: $179.99
Special Price $152.78
Hitachi Oil Pump and Timing Cover Assembly for the 02-06 QR25DE (does not fit B16 models)
- Original Equipment Supplier
- Easy installation with a factory quality fit
- Modular design
- Long service life
- Flow-optimized system design
2JR offers an option for a complete set of OEM Orings needed for the install (these come with the 2JR Rebuild Kit)
- (2)pcs - 15066-3Z000
- (1)pcs - 15066-3Z001
- (1)pcs - 15066-3Z002
- (1)pcs - 15066-3Z003
- (1)pcs - 15066-3Z005
Learn More