Basic Info.
| Part no. | 1.9TDI | Material | steel |
| Type | Cylinder Head | Part Type | Engine Parts |
| Compatibility | Volkswagen (VW) Jetta | Transport Package | Wooden box |
| Trademark | DIRON | Origin | Luoyang City |
| HS Code | 84099991 | Production Capacity | 5000PCS/Year |
Product Details
- Date First Listed：2025/03/21
- Manufacturer：Diron Parts
Product Description
- Part Type：Cylinder Head
- Description: Volkswagen (VW) Jetta Engine
Product Introduction: Volkswagen Jetta 1.9 TDI Cylinder Head
Overview
The Volkswagen Jetta 1.9 TDI Cylinder Head is a precision-engineered component designed for the 1.9-liter Turbocharged Direct Injection (TDI) diesel engine, a staple in various Volkswagen Jetta models from 1999 to 2010. Known as the ALH (1999-2003), BEW (2004-2006), or BRM (2005-2010) engine codes depending on the model year and emissions standards, this 1.9 TDI engine has been celebrated for its fuel efficiency and durability. The cylinder head is available as an aftermarket or remanufactured part, offered in bare or complete configurations (with valves and camshaft), making it a reliable choice for repairs or upgrades in Jetta models such as the Mk4 (1999-2005) and Mk5 (2005-2010). This component ensures optimal combustion and performance in diesel-powered compact sedans.
Key Features
- Material: Constructed from cast iron, providing exceptional durability and heat resistance, critical for the high-pressure environment of a turbocharged diesel engine.
- Design: Features a single overhead camshaft (SOHC) configuration with 8 valves (2 per cylinder), precision-machined intake and exhaust ports for efficient airflow, and compatibility with TDI’s direct injection system.
- Compatibility: Designed for the Volkswagen Jetta 1.9 TDI engine, including:
- Jetta Mk4 (1999-2005): ALH engine code (90 HP, 155 lb-ft torque).
- Jetta Mk5 (2005-2010): BEW (100 HP, 177 lb-ft torque) and BRM (100 HP, 177 lb-ft torque) engine codes.
- Common models: GL TDI, GLS TDI, TDI Wagon.
- Part Numbers: Common references include 038103351D (ALH), 038103351E (BEW), and aftermarket equivalents like AMC 908710.
- Configuration Options: Available as a bare cylinder head or fully assembled with valves, springs, camshaft, and sometimes glow plugs, depending on supplier specifications.
Technical Specifications
- Engine Fitment: Volkswagen 1.9 TDI (1,896 cc, 1.9L, 4-cylinder diesel)
- Material: Cast iron
- Valve Configuration: 8-valve SOHC (intake and exhaust valve sizes vary by engine code; e.g., ALH: 35.5 mm intake, 31.5 mm exhaust).
- Compression Ratio: Supports 19.5:1 (ALH) or 19:1 (BEW/BRM) for efficient diesel combustion.
- Weight: Approximately 35-45 lbs (16-20 kg), depending on configuration.
- Fuel System: Compatible with Bosch rotary injection pump (VP37 for ALH) or unit injector system (PD for BEW/BRM).
Performance Benefits
The Volkswagen Jetta 1.9 TDI Cylinder Head enhances engine performance by:
- Maintaining high compression ratios for efficient fuel combustion, achieving 40-50 MPG (highway) in stock form with a manual transmission.
- Supporting turbocharged operation for improved torque delivery (e.g., 155-177 lb-ft), ideal for daily commuting and towing.
- Ensuring durability with cast iron construction, capable of exceeding 300,000 miles with proper maintenance, as noted by VW enthusiasts.
Applications
This cylinder head is essential for Jetta models equipped with the 1.9 TDI engine, widely used in:
- Compact sedans (e.g., Jetta GLS TDI, GL TDI) for fuel-efficient commuting.
- Wagons (e.g., Jetta TDI Wagon) for added cargo versatility.
- Aftermarket repairs and performance upgrades, popular among diesel enthusiasts for tuning potential (e.g., adding 25 HP via programmers like Kerma TDI).
Installation Considerations
- Compatibility Check: Confirm engine code (ALH, BEW, BRM) and part number for proper fitment across Jetta model years.
- Required Components: Installation requires a new head gasket, torque-to-yield head bolts, and often a timing belt kit (critical for ALH’s belt-driven camshaft).
- Torque Specifications: Follow VW’s multi-stage torque sequence (e.g., ALH: 40 Nm, +90°, +90°) to ensure proper sealing.
- Professional Installation: Recommended due to the complexity of diesel engine timing and the risk of head warping if mishandled.
Why Choose the Volkswagen Jetta 1.9 TDI Cylinder Head?
Cost-Effective: Offers an affordable repair option compared to full engine replacement, extending vehicle life.
Reliability: Proven longevity in the 1.9 TDI engine, a favorite among VW owners for its robustness.
Fuel Efficiency: Restores the engine’s ability to achieve exceptional MPG, a hallmark of TDI technology.
Note: While this description provides general information about cylinder heads, specific details such as size, weight and exact material may vary by manufacturer and specific application. To obtain the most accurate and up-to-date information, it is recommended to consult a qualified parts supplier such as DIRON PARTS.
FAQ
Q1. What is your terms of packing?
A: Generally, we pack our goods in neutral white boxes and brown cartons. If you have legally registered patent, we can pack the goods in your branded boxes after getting your authorization letters.
Q2. What is your terms of payment?
A: T/T 30% as deposit, and 70% before delivery. We’ll show you the photos of the products and packages before you pay the balance.
Q3. What is your terms of delivery?
A: FOB
Q4. How about your delivery time?
A: Generally, it will take 20 to 30 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order.
Q5. Can you produce according to the samples?
A: Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.
Q6. What is your sample policy?
A: We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and the courier cost.
Q7. Do you test all your goods before delivery?
A: Yes, we have 100% test before delivery
Q8. How do you make our business long-term and good relationship?
A:1. We keep good quality and competitive price to ensure our customers benefit ;
2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from
ABOUT DIRON
- Factory OF DIRON
Diron Parts Group Have Its Own Factory Ensure That We Offer Better Price For Customers. Besides, Diron Corporate With Some Reliable Principal Manufacturers, So Diron Also Supply Customer Other Quality Spare Parts.
- Team OF DIRON
With 18 years of manufacturing and exporting experience, Diron has a team of knowledgeable engineers, inspectors and technical workers, sales staff, after-sales personnel.
- Products OF DIRON
As a distributor, we supply parts covers for :Complete engines, Long block, Short block, Engine spare parts, Electricla products, Hydraulic products, Transmission products, Undercarridge products.Among them, Cylinder head, Cylinder block, Spacer-plate, Bushing & Pin are our best-selling products.
