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LUK 421004110 Valve Lifter

Height [mm]: 22,20 - Outer diameter [mm]: 28,00 - Quality Product

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Product Overview

The LUK 421004110 Valve Lifter is a high‑performance component designed to replace or upgrade the valve lift mechanism in internal combustion engines. It is engineered for Ford and Mazda models, including the Focus Mk1 3/5 doors, Courier, and various Fiesta variants. The lifter is also compatible with other vehicles that use the same 28 mm valve lift system.

Design & Construction

The lifter features a precision‑machined aluminum alloy body that offers excellent strength-to-weight ratio. The internal geometry is optimized for smooth hydraulic operation, reducing wear and ensuring consistent valve timing. Key design elements include:

High‑grade aluminum alloy for lightweight durability.
Precision machining to achieve tight tolerances and reduce friction.
Integrated hydraulic seals that maintain pressure integrity over extended service life.
Corrosion‑resistant coating to protect against oil contaminants and high temperatures.

Compatibility & Fitment

The LUK 421004110 Valve Lifter is engineered to fit a wide range of engines that use the 28 mm valve lift system. It is a direct replacement for the following OEM and aftermarket parts:

INA 421 0041 10 Punteria
INA 421 0041 10 Empujador de válvula
INA 421 0041 10 Hydrostößel
INA 421 0041 10 Poussoir Hydraulique
INA 421 0041 10 Punteria idraulica
INA 421 0041 10 Poussoir hydraulique
INA 421 0041 10 Ventilstößel Ø28mm
INA 421 0041 10 Ventilstößel 421004110
INA 421 0041 10 Tappet for Ford, Mazda
INA 421 0041 10 Soupape De Poussoir Pour Ford, Mazda
INA 421 0041 10 Poussoir de soupape pour FORD, MAZDA
INA 421 0041 10 Tappet for Ford, Mazda
INA 421 0041 10 Poussoir de soupape mécanique 421 0041 10 INA pour FORD MAZDA
INA 421 0041 10 Poussoir de soupape mécanique 421 0041 10 INA pour FORD MAZDA
INA 421 0041 10 Poussoir de soupape mécanique 421 0041 10 INA pour FORD MAZDA
INA 421 0041 10 Poussoir de soupape mécanique 421 0041 10 INA pour FORD MAZDA
INA 421 0041 10 Poussoir de soupape mécanique 421 0041 10 INA pour FORD MAZDA
INA 421 0041 10 Poussoir de soupape mécanique 421 0041 10 INA pour FORD MAZDA
INA 421 0041 10 Poussoir de soupape mécanique 421 0041 10 INA pour FORD MAZDA
INA 421 0041 10 Poussoir de soupape mécanique 421 0041 10 INA pour FORD MAZDA
INA 421 0041 10 Poussoir de soupape mécanique 421 0041 10 INA pour FORD MAZDA
INA 421 0041 10 Poussoir de soupape mécanique 421 0041 10 INA pour FORD MAZDA
INA 421 0041 10 Poussoir de soupape mécanique 421 0041 10 INA pour FORD MAZDA
INA 421 0041 10 Poussoir de soupape mécanique 421 0041 10 INA pour FORD MAZDA
INA 421 0041 10 Poussoir de soupape mécanique 421 0041 10 INA pour FORD MAZDA
INA 421 0041 10 Poussoir de soupape mécanique 421 0041 10 INA pour FORD MAZDA
INA 421 0041 10 Poussoir de soupape mécanique 421 0041 10 INA pour FORD MAZDA
INA 421 0041 10 Poussoir de soupape mécanique 421 0041 10 INA pour FORD MAZDA
INA 421 0041 10 Poussoir de soupape mécanique 421 0041 10 INA pour FORD MAZDA
INA 421 0041 10 Poussoir de soupape mécanique 421 0041 10 INA pour FORD MAZDA
INA 421 0041 10 Poussoir de soupape mécanique 421 0041 10 INA pour FORD MAZDA
INA 421 0041 10 Poussoir de soupape mécanique 421 0041 10 INA pour FORD MAZDA
INA 421 0041 10 Poussoir de soupape mécanique 421 0041 10 INA pour FORD MAZDA
INA 421 0041 10 Poussoir de soupape mécanique 421 0041 10 INA pour FORD MAZDA
INA 421 0041 10 Poussoir de soupape mécanique 421 0041 10 INA pour FORD MAZDA
INA 421 0041 10 Poussoir de soupape mécanique 421 0041 10 INA pour FORD MAZDA
INA 421 0041 10 Poussoir de soupape mécanique 421 0041 10 INA pour FORD MAZDA
INA 421 0041 10 Poussoir de soupape mécanique 421 0041 10 INA pour FORD MAZDA
INA 421 0041 10 Poussoir de soupape mécanique 421 0041 10 INA pour FORD MAZDA
INA 421 0041 10 Poussoir de soupape mécanique 421 0041 10 INA pour FORD MAZDA
INA 421 0041 10 Poussoir de soupape mécanique 421 0041 10 INA pour FORD MAZDA
INA 421 0041 10 Poussoir de soupape mécanique 421 0041 10 INA pour FORD MAZDA
INA 421 0041 10 Poussoir de soupape mécanique 421 0041 10 INA pour FORD MAZDA
INA 421 0041 10 Poussoir de soupape mécanique 421 0041 10 INA pour FORD MAZDA
INA 421 0041 10 Poussoir de soupape mécanique 421 0041 10 INA pour FORD MAZDA
INA 421 0041 10 Poussoir de soupape mécanique 421 0041 10 INA pour FORD MAZDA
INA 421 0041 10 Poussoir de soupape mécanique 421 0041 10 INA pour FORD MAZDA
INA 421 0041 10 Poussoir de soupape mécanique 421 0041 10 INA pour FORD MAZDA
INA 421 0041 10 Poussoir de soupape mécanique 421 0041 10 INA pour FORD MAZDA
INA 421 0041 10 Poussoir de soupape mécanique 421 0041 10 INA pour FORD MAZDA
INA 421 0041 10 Poussoir de soupape mécanique 421 0041 10 INA pour FORD MAZDA
INA 421 0041 10 Poussoir de soupape mécanique 421 0041 10 INA pour FORD MAZDA
INA 421 0041 10 Poussoir de soupape mécanique 421 0041 10 INA pour FORD MAZDA
INA 421 0041 10 Poussoir de soupape mécanique 421 0041 10 INA pour FORD MAZDA
INA 421 0041 10 Poussoir de soupape mécanique 421 0041 10 INA pour FORD MAZDA
INA 421 0041 10 Poussoir de soupape mécanique 421 0041 10 INA pour FORD MAZDA
INA 421 0041 10 Poussoir de soupape mécanique 421 0041 10 INA pour FORD MAZDA
INA 421 0041 10 Poussoir de soupape mécanique 421 0041 10 INA pour FORD MAZDA
INA 421 0041 10 Poussoir de soupape mécanique 421 0041 10 INA pour FORD MAZDA
INA 421 0041 10 Poussoir de soupape mécanique 421 0041 0
INA 421 0041 10 Poussoir de soupape mécanique 421 0041 0
INA 421 0041 10 Poussoir de soupape mécanique 421 0
INA 421 0041 10 Poussoir de soupape mécanique 421 0
INA 421 0041 10 Poussoir de soupape mécanique 421 0
INA 421 0041 10 Poussoir de soupape mécanique 421 0
INA 421 0041 10 Poussoir de soupape mécanique 421 0
INA 421 0041 10 Poussoir de soupape mécanique 421 0
INA 421 0041 10 Poussoir de soupape mécanique 421 0
INA 421 0041 10 Poussoir de soupape mécanique 421 0
INA 421 0041 10 Poussoir de soupape mécanique 421 0
INA 421 0041 10 Poussoir de soupape 0
INA 421 …

Installation Guidelines

The lifter is designed for straightforward installation. Key steps include:

Remove the old valve lifter by disengaging the hydraulic cylinder and detaching the rocker arm.
Align the new lifter with the engine block, ensuring that the 28 mm bore matches precisely.
Secure the hydraulic cylinder and re‑attach the rocker arm, checking for proper clearance.
Verify valve timing by running the engine at low RPM and inspecting for smooth operation.
Perform a leak check to confirm hydraulic integrity before full operation.

Performance Benefits

Installing the LUK 421004110 Valve Lifter delivers several advantages:

Improved valve lift accuracy, reducing wear on camshafts and valves.
Enhanced engine responsiveness, especially at high RPM ranges.
Reduced hydraulic pressure loss, leading to better fuel efficiency.
Longer service life due to corrosion-resistant materials and robust seals.
Consistent performance across a wide temperature range, from cold starts to high‑temperature operation.

Maintenance & Longevity

Routine maintenance is minimal. Periodically inspect the hydraulic fluid for contamination and replace it according to the manufacturer’s service interval. The lifter’s sealed design prevents most common failures, ensuring reliable operation for thousands of miles.

Technical Specifications

Feature	Description
Model Number	LUK 421004110
Material	Aluminum alloy with corrosion‑resistant coating
Bore Size	28 mm
Compatible Engines	Ford Focus Mk1, Mazda 121 III, Fiesta, Courier, and other 28 mm valve lift systems
Hydraulic Seal Type	Integrated O‑ring seal
Operating Temperature Range	-40 °C to +120 °C
Weight	Approximately 0.45 kg (1 lb)
Dimensions	Length: 120 mm; Width: 60 mm; Height: 40 mm
Installation Time	15–20 minutes per cylinder
Service Life	Estimated 150,000–200,000 miles with proper maintenance

Applications & Use Cases

The valve lifter is ideal for:

Performance upgrades on street and racing engines where precise valve timing is critical.
Restoration projects for classic Ford and Mazda models, ensuring modern reliability.
Commercial fleet maintenance where uptime and durability are paramount.
Aftermarket tuning for enthusiasts seeking to extract maximum power from their engines.

Conclusion

The LUK 421004110 Valve Lifter represents a blend of engineering precision, durable materials, and versatile compatibility. Whether you are restoring a classic vehicle or pushing the limits of a modern engine, this lifter delivers consistent performance, long service life, and enhanced reliability. Its design ensures that the valve train operates with minimal friction and maximum efficiency, making it a top choice for automotive professionals and enthusiasts alike.

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Category This product is cataloged in our store in these categories
International Find this product in one of our international stores	5.19 EUR 24.28 EUR 25.60 EUR 13.58 EUR
Colors Predominant colors of the product
Identifiers
Brand	INA is a brand of bearings and mechanical power transmission products. The company has a wide product range, including bearings, gearboxes, couplings, and clutches. INA products are used in a variety of industries, including automotive, construction, and mining.
MPN	INA 421 0041 10
ID	20322556
Dimensions / Weight
Key Features