Nissan QR25DE Specs: 89 x 100 mm (3.5039 x 3.9370 in), 152-200 hp

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Nissan QR25DE specs: 2.5L (152 ci) 4-cylinder, 89 x 100 mm (3.5039 x 3.9370 in) bore and stroke. Rated 152-200 hp, 2002–2019. Used in the Nissan Altima. DOHC.

The Nissan QR25DE is undersquare — the 3.937" stroke exceeds the 3.5039" bore by 11.0% — a layout that trades peak RPM for leverage and torque low in the range. The 3.937" stroke puts mean piston speed at 4,000 ft/min around 6,100 RPM, which is where a production bottom end is generally considered at its limit. Each of the 4 cylinders displaces 38.0 ci (623 cc).

It is one of 4 engines in the Nissan 152ci family, all of them 152 ci — the differences between them are in compression, heads and rating, not displacement. 55 factory variants share these dimensions, rated from 152 to 200 hp across 2002–2019.

Dimensions

Displacement	152 ci / 2.5 L
Bore	3.5039"
Stroke	3.937"
Cylinders	4
Configuration	I4
Compression ratio	9.5–10.5:1 (published figures vary)
Bore/stroke ratio	0.89

Construction

Block material	aluminum
Head material	aluminum
Valvetrain	DOHC
Fuel type	gas
Advertised HP	152–200 hp
Years	2002–2019

Factory ratings by year

Year	Version	HP @ rpm	Torque @ rpm	Comp.
2002	QR25DE net	165 @ 6000	175 lb-ft @ 4000	—
2002	QR25DE net	175 @ 6000	180 lb-ft @ 4000	—
2003	QR25DE net	165 @ 6000	175 lb-ft @ 4000	—
2003	QR25DE net	175 @ 6000	180 lb-ft @ 4000	—
2004	QR25DE net	165 @ 6000	175 lb-ft @ 4000	—
2004	QR25DE net	175 @ 6000	180 lb-ft @ 4000	—
2005	QR25DE net	154	173 lb-ft	—
2005	QR25DE net	165 @ 6000	175 lb-ft @ 4000	—
2005	QR25DE net	175 @ 6000	180 lb-ft @ 4000	—
2006	QR25DE net	154	173 lb-ft	—
2006	QR25DE net	165 @ 6000	175 lb-ft @ 4000	—
2006	QR25DE net	175 @ 6000	180 lb-ft @ 4000	—
2007	QR25DE net	152 @ 5200	171 lb-ft @ 4400	9.5:1
2007	QR25DE net	175	180 lb-ft	9.6:1
2007	QR25DE net	177 @ 6000	172 lb-ft @ 2800	9.6:1
2007	QR25DE net	200 @ 6600	180 lb-ft @ 5200	10.5:1
2008	QR25DE net	152 @ 5200	171 lb-ft @ 4400	9.5:1
2008	QR25DE net	175	180 lb-ft	9.6:1
2008	QR25DE net	177 @ 6000	172 lb-ft @ 2800	9.6:1
2008	QR25DE net	200 @ 6600	180 lb-ft @ 5200	10.5:1
2009	QR25DE net	152 @ 5200	171 lb-ft @ 4400	9.5:1
2009	QR25DE net	175	180 lb-ft	9.6:1
2009	QR25DE net	177 @ 6000	172 lb-ft @ 2800	9.6:1
2009	QR25DE net	200 @ 6600	180 lb-ft @ 5200	10.5:1
2010	QR25DE net	152 @ 5200	171 lb-ft @ 4400	9.5:1
2010	QR25DE net	175	180 lb-ft	9.6:1
2010	QR25DE net	177 @ 6000	172 lb-ft @ 2800	9.6:1
2010	QR25DE net	200 @ 6600	180 lb-ft @ 5200	10.5:1
2011	QR25DE net	152 @ 5200	171 lb-ft @ 4400	9.5:1
2011	QR25DE net	175	180 lb-ft	9.6:1
2011	QR25DE net	177 @ 6000	172 lb-ft @ 2800	9.6:1
2011	QR25DE net	200 @ 6600	180 lb-ft @ 5200	10.5:1
2012	QR25DE net	152 @ 5200	171 lb-ft @ 4400	9.5:1
2012	QR25DE net	175	180 lb-ft	9.6:1
2012	QR25DE net	177 @ 6000	172 lb-ft @ 2800	9.6:1
2012	QR25DE net	200 @ 6600	180 lb-ft @ 5200	10.5:1
2013	QR25DE net	152 @ 5200	171 lb-ft @ 4400	9.5:1
2013	QR25DE net	182 @ 6000	180 lb-ft @ 4000	9.6:1
2014	QR25DE net	152 @ 5200	171 lb-ft @ 4400	9.5:1
2014	QR25DE net	182 @ 6000	180 lb-ft @ 4000	9.6:1
2015	QR25DE net	152 @ 5200	171 lb-ft @ 4400	9.5:1
2015	QR25DE net	182 @ 6000	180 lb-ft @ 4000	9.6:1
2016	QR25DE net	152 @ 5200	171 lb-ft @ 4400	9.5:1
2016	QR25DE net	182 @ 6000	180 lb-ft @ 4000	10.3:1
2017	QR25DE net	152 @ 5200	171 lb-ft @ 4400	9.5:1
2017	QR25DE net	179 @ 6000	177 lb-ft @ 4000	10.3:1
2018	QR25DE net	152 @ 5200	171 lb-ft @ 4400	9.5:1
2018	QR25DE net	179 @ 6000	177 lb-ft @ 4000	10.3:1
2019	QR25DE net	152 @ 5200	171 lb-ft @ 4400	9.5:1

Factory specification sheet.

What these numbers mean

Bore/stroke character	0.890 — undersquare — stroke exceeds bore, which favours low-end torque
Mean piston speed at 6,000 RPM	3,937 ft/min — in the range typical of performance street engines
Displacement per cylinder	38.0 ci

Run the numbers for this engine

Each link opens the calculator with this engine's specs already filled in.

• Displacement from bore and stroke (calculator)
• Static and dynamic compression ratio calculator
• Piston ring gap for this bore
• Piston speed at any RPM
• Horsepower to torque at any RPM
• What size carburetor (CFM calculator)

Variants sharing these dimensions (55)

These records share identical bore, stroke, displacement and compression. They differ by model year and factory power rating.

Year	Advertised HP	Code
2002	165 hp	QR25DE
2002	175 hp	QR25DE
2003	165 hp	QR25DE
2003	175 hp	QR25DE
2004	165 hp	QR25DE
2004	175 hp	QR25DE
2005	154 hp	QR25DE
2005	165 hp	QR25DE
2005	175 hp	QR25DE
2006	154 hp	QR25DE
2006	165 hp	QR25DE
2006	175 hp	QR25DE
2007	152 hp	QR25DE
2007	175 hp	QR25DE
2007	177 hp	QR25DE
2007	198 hp	QR25DE
2007	200 hp	QR25DE
2008	152 hp	QR25DE
2008	175 hp	QR25DE
2008	177 hp	QR25DE
2008	198 hp	QR25DE
2008	200 hp	QR25DE
2009	152 hp	QR25DE
2009	175 hp	QR25DE
2009	177 hp	QR25DE
2009	198 hp	QR25DE
2009	200 hp	QR25DE
2010	152 hp	QR25DE
2010	175 hp	QR25DE
2010	177 hp	QR25DE
2010	198 hp	QR25DE
2010	200 hp	QR25DE
2011	152 hp	QR25DE
2011	175 hp	QR25DE
2011	177 hp	QR25DE
2011	198 hp	QR25DE
2011	200 hp	QR25DE
2012	152 hp	QR25DE
2012	175 hp	QR25DE
2012	177 hp	QR25DE
2012	200 hp	QR25DE
2013	152 hp	QR25DE
2013	175 hp	QR25DE
2013	182 hp	QR25DE
2014	152 hp	QR25DE
2014	182 hp	QR25DE
2015	152 hp	QR25DE
2015	182 hp	QR25DE
2016	152 hp	QR25DE
2016	182 hp	QR25DE
2017	152 hp	QR25DE
2017	179 hp	QR25DE
2018	152 hp	QR25DE
2018	179 hp	QR25DE
2019	152 hp	QR25DE

What cars have the QR25DE?

6 factory vehicles, 2002–2020. Each year opens that model's engine table.

• Nissan Altima: 2002, 175 hp; 2003, 175 hp; 2004, 175 hp; 2005, 175 hp; 2006, 175 hp; 2007, 175 hp; 2007, 198 hp; 2008, 175 hp; 2008, 198 hp; 2009, 175 hp; 2009, 198 hp; 2010, 175 hp; 2010, 198 hp; 2011, 175 hp; 2011, 198 hp; 2012, 175 hp; 2013, 175 hp; 2013, 182 hp; 2014, 182 hp; 2015, 182 hp; 2016, 182 hp; 2017, 179 hp; 2018, 179 hp
• Nissan Sentra: 2002, 165 hp; 2002, 175 hp; 2003, 165 hp; 2003, 175 hp; 2004, 165 hp; 2004, 175 hp; 2005, 165 hp; 2005, 175 hp; 2006, 165 hp; 2006, 175 hp; 2007, 177 hp; 2007, 200 hp; 2008, 177 hp; 2008, 200 hp; 2009, 177 hp; 2009, 200 hp; 2010, 177 hp; 2010, 200 hp; 2011, 177 hp; 2011, 200 hp; 2012, 177 hp; 2012, 200 hp
• Nissan Frontier: 2005, 154 hp; 2006, 154 hp; 2007, 152 hp; 2008, 152 hp; 2009, 152 hp; 2010, 152 hp; 2011, 152 hp; 2012, 152 hp; 2013, 152 hp; 2014, 152 hp; 2015, 152 hp; 2016, 152 hp; 2017, 152 hp; 2018, 152 hp; 2019, 152 hp
• Nissan Rogue: 2008, 170 hp; 2009; 2010, 170 hp; 2011; 2012, 170 hp; 2013, 170 hp; 2014; 2014, 170 hp; 2015; 2015, 170 hp; 2016, 170 hp; 2017, 170 hp; 2018, 170 hp; 2019, 170 hp; 2020, 170 hp
• Nissan Pathfinder: 2014, 250 hp; 2015, 250 hp
• Nissan Murano: 2016, 250 hp

Similar engines

• Nissan PR25DD — 152 ci
• Nissan QR25DER — 152 ci
• Nissan SD25 — 152 ci
• Nissan RB25DE — 152.4 ci
• Nissan RB · 3.386" × 2.823" · 9:1 — 152.4 ci
• Nissan RB25DE NEO — 152.4 ci
• Infiniti QR25DER — 152 ci
• Infiniti VQ25HR — 152 ci

← All Nissan 152ci engines