Aluminum Cylinder Head for Nissan YD25DDTI YD22DDTI Turbo Diesel Engines

Numéro de produit

ML N°	N° OEM	RÉF. N°
MLG051A	11040 5M300 11040 5M301 11040 5M302 11040 BN360	908505
MLG051B	11039 EC00A 11039 EB30A 11040 EB30A 11040 EB300 11040 EC00C	908510
MLG051C	11040 5X00A	908527
MLG051D	11040AW400 11040AW401	908507
MLG051E	110408H800 110408H802 11040AW802	908508

Informations sur le produit Culasse

1. Présentation du produit

Nissan’s YD series diesel engines — YD25DDTi (2.5L) and YD22DDTi (2.2L) — are high-performance inline-4 turbocharged diesel engines used in SUVs, pickups, vans, and commercial vehicles. Both feature DOHC 16-valve aluminum alloy cylinder heads, with VP44 mechanical or common-rail (CRDi) fuel systems, depending on the market and year.

2. Spécifications techniques

Article	YD25DDTi	YD22DDTi
Déplacement	2,5 L (2488 cm3)	2,2 L (2184 cm3)
Train de soupapes	DACT, 16 soupapes	DACT, 16 soupapes
Matériau de la tête	alliage d'aluminium	alliage d'aluminium
Système de carburant	VP44 / CRDi	Primarily VP44
Turbocompressé	Oui	Oui
Normes d'émission	Euro 3–5	Euro 3
Timing	chaîne de distribution	chaîne de distribution
Circuit de refroidissement	Refroidi par eau	Refroidi par eau

3. OEM Cylinder Head Numbers

YD25DDTi:

11039-5X00A – Early VP44 version
11039-5X01A – Common Rail version
11039-EC00A / EC00B – Updated casting for CRD
11039-VK525 / VK526 – Reinforced high-performance version
11039-EB70A – Late-model NP300

YD22DDTi:

11039-8H800
11039-8H801
11039-8H802
11039-BN300 – CRD version for X-Trail / Almera
11039-BN30A – Newer casting

4. Véhicules compatibles

Modèle	Moteur	Remarques
Nissan Navara D22/D40	YD25	Pickup / Ute 2002–2015
Nissan Pathfinder R51	YD25	SUV, 2005–2012
Nissan NP300 / Hardbody	YD25	Africa, Asia, LATAM markets
Dongfeng Rich	YD25	China domestic pickups
Nissan X-Trail T30/T31	YD22/YD25	Diesel trims 2001–2013
Nissan Almera / Bluebird Sylphy	YD22	EU diesel variants
Nissan Serena (C24)	YD22	MPV 2001–2006
Nissan Primera / AD	YD22	European 2.2 Di/Dci versions

5. Product Availability

Option	Détails
Tête nue	Casting only, no internals
Tête semi-complète	Includes valves, guides, springs
Tête entièrement assemblée	Camshafts, lifters, valves pre-installed

✔ Precision-machined sealing surfaces
✔ Pressure-tested cooling jackets
✔ Suitable for OEM replacement & rebuild kits

6. Notes d'installation

Use new Joint de culasse MLS et new torque-to-yield (TTY) bolts
Thoroughly clean oil and coolant passages before installation
Ensure proper injector seat sealing – replace copper washers
Vérifier timing chain tensioner & guides during service
Confirm EGR ports and swirl chamber compatibility for CRD versions
After reassembly, bleed cooling system and prime oil before starting

7. Common Cylinder Head Problems & Repair Advice

Problème	Symptôme	Cause	Solution recommandée
Cracked Cylinder Head	Overheating, white smoke	Weak castings (early YD25), excessive load	Use reinforced heads (e.g., VK525); always replace head bolts
Injector Blow-by	Ticking, smoke, black injector seats	Worn copper washer or seat erosion	Reface seat, install new washers with correct torque
Camshaft Journal Wear	Noise, misfire, loss of power	Oil starvation, dirty oil	Replace cam or complete head; clean oil channels
Coolant Mixing with Oil	Milky oil or sludge	Internal crack or EGR cooler leak	Pressure test head & cooler; replace head or gasket
Valve Seat Recession	Misfire, poor compression	Low-quality fuel, long hours	Resurface valve seats or replace head

8. Key Export Markets

Asie: Philippines, Thailand, Indonesia, China
Afrique: Nigeria, Kenya, South Africa, Egypt
Europe: UK, France, Spain, Germany
l'Amérique latine: Chile, Bolivia, Colombia, Peru
Moyen-Orient: Iraq, UAE, Saudi Arabia
Océanie: Australie, Nouvelle-Zélande

Déplacement	Carburant	Cylindre	Vallée	Arbre à cames	Année
2.2 / 2.5	Diesel	4	16	2	2001-

Culasse en aluminium pour moteurs turbo diesel Nissan YD25DDTI et YD22DDTI

Moteur applicable :

Marque applicable :

Voiture applicable :

Paramètres du produit :

Introduction