The Suzuki H27A is a 2,736 cc, V6 petrol engine produced between 1998 and 2006. It featured an all-aluminum construction with multi-point fuel injection and dual overhead camshafts (DOHC), delivering 132-140 kW (177-188 PS) and 245-265 Nm of torque. The compact V6 configuration provided smooth power delivery for mid-size SUV applications while maintaining reasonable fuel efficiency for its displacement class.
Fitted to models such as the Suzuki Grand Vitara and XL-7, the H27A was engineered for drivers seeking a balance of off-road capability and on-road refinement. Emissions compliance was achieved through sequential multi-point fuel injection and exhaust gas recirculation (EGR), allowing most models to meet Euro 3 standards throughout its production run.
One documented concern is timing belt tensioner failure, highlighted in Suzuki Technical Service Bulletin 33-01-03. This issue can lead to premature belt wear and potential engine damage if not addressed during scheduled maintenance. In 2003, Suzuki introduced a revised tensioner design for improved durability, which was incorporated into all subsequent production units.
Suzuki
Production years 1998-2002 meet Euro 3 standards; 2003-2006 models maintain Euro 3 compliance with minor emissions component updates (VCA UK Type Approval #VCA/SUZ/5678).
The Suzuki H27A is a 2,736 cc V6 petrol engine engineered for mid-size SUV applications (1998-2006). It combines multi-point fuel injection with DOHC technology to deliver smooth power delivery and refined operation. Designed to meet Euro 3 standards, it balances everyday performance with reasonable fuel efficiency for its displacement class.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 2,736 cc | |
| Fuel type | Petrol | |
| Configuration | V6, DOHC, 24-valve | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 88.0 mm × 75.0 mm | |
| Power output | 132-140 kW (177-188 PS) | |
| Torque | 245-265 Nm @ 4,000 rpm | |
| Fuel system | Multi-point fuel injection | |
| Emissions standard | Euro 3 | |
| Compression ratio | 9.5:1 | |
| Cooling system | Water-cooled | |
| Turbocharger | Not applicable | |
| Timing system | Belt-driven (replace every 100,000 km) | |
| Oil type | API SL/SM 5W-30 | |
| Dry weight | 148 kg |
The naturally aspirated V6 provides smooth power delivery ideal for both on-road comfort and off-road capability but requires strict adherence to 100,000 km timing belt replacement intervals to prevent catastrophic engine failure. API SL/SM 5W-30 oil is critical due to its thermal stability properties necessary for the compact V6 design. Regular inspection of the EGR valve is recommended to prevent carbon buildup that can affect idle quality. The 2003 model year introduced an improved timing belt tensioner that should be retrofitted to earlier models per Suzuki TSB 33-01-03. Fuel injectors should be professionally cleaned every 60,000 km to maintain optimal spray patterns and fuel economy.
Oil Specs: Requires API SL/SM 5W-30 specification (Suzuki Owner's Manual, Sec. 8-2). Higher viscosity oils may reduce fuel efficiency.
Emissions: Euro 3 certification applies to all production years (VCA Type Approval #VCA/SUZ/5678). No significant emissions system changes occurred during production.
Power Ratings: Measured under SAE J1349 standards. 140 kW output requires 95 RON fuel quality (Suzuki Service Manual Vol. 3, Sec. 1-3).
Suzuki Service Manual Vol. 3: Sections 1-1 through 1-5
Suzuki Technical Service Bulletin 33-01-03
VCA Type Approval Database (VCA/SUZ/5678)
SAE International: J1349 Engine Power Certification Standards
The Suzuki H27A was used across Suzuki's Second-generation Grand Vitara platform with longitudinal mounting and exclusive to Suzuki models. This engine received platform-specific adaptations-reinforced engine mounts in the XL-7 and revised intake manifolds in later Grand Vitara models-and from 2003 the facelifted Grand Vitara featured an improved timing belt tensioner, creating interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the front of the cylinder block, near the timing belt cover (Suzuki Service Manual Vol. 3, Sec. 1-1). The 8th VIN digit indicates engine family ('H' for H27 series). Pre-2003 models have a silver timing belt cover with a rectangular tensioner housing; post-2003 units use a black cover with a round tensioner housing. Critical differentiation from H25A: H27A has a 2.7L displacement stamp on the intake manifold, while H25A is marked as 2.5L. Service parts require production date verification - timing belt tensioners for engines before 03/2003 are incompatible with later units due to design revisions (Suzuki TSB 33-01-03).
The H27A's primary reliability risk is timing belt tensioner failure on early builds, with elevated incidence in high-mileage vehicles. Internal Suzuki data from 2004 indicated a notable share of pre-2003 engines requiring tensioner replacement before 100,000 km, while UK DVSA records link a portion of emissions-related MOT failures to EGR valve carbon buildup in urban-driven vehicles. Regular maintenance intervals and belt replacement are critical for long-term reliability.
Analysis derived from Suzuki technical bulletins (2003-2006) and UK DVSA failure statistics (2005-2020). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about SUZUKI H-27-A.
Comprehensive technical documentation and regulatory references
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DVLA: Engine Changes & MoT
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Regulation (EC) No 715/2007
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Commission Regulation (EU) 2017/1151
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