Engine Piston 13101-54101 1310154101 For TOYOTA 3L Hilux LN106 LN107 Hiace Dyna 2.8D — Verified OEM Direct Fit, 96mm STD Alfin Tinned Diesel Piston Set

The Engine Piston with OEM number 13101-54101 is a verified direct-fit replacement for TOYOTA 3L (2.8L) diesel engines. This piston is a critical reciprocating component responsible for converting combustion pressure into crankshaft rotation and managing thermal load within the cylinder. The 3L is a 2,779 cc water-cooled inline-4 OHV 8-valve indirect-injection diesel engine with a 96.0 mm bore and 96.0 mm stroke, widely used in TOYOTA Hilux (LN106, LN107, LN111, LN130, LN166), Hiace, Dyna 150, and 4Runner models from 1988 through 2005.

This piston features an Alfin insert at the ring-land area for ring-groove reinforcement and tin coating (tinned alfin steel) for improved break-in characteristics and scuff resistance. The 4-cylinder set is supplied in standard (STD) 96.00 mm size, with oversize options available for worn cylinder bores.

• Dimensional Verification: Piston diameter 96.00 mm (STD), compression height 42.30–42.40 mm, total length 80.30–80.40 mm, pin diameter 29 mm, pin length 74 mm — verified against OEM drawing specifications for the 3L platform.
• Ring Groove Geometry: Ring grooves sized 2.0 mm (top, 2.0H) / 2.0 mm (second) / 4.0 mm (oil control) — matched to OEM 3L piston ring specifications.
• Material & Construction: Manufactured from tinned alfin steel with Alfin insert for ring-land reinforcement. The tin coating enhances break-in characteristics and reduces friction during initial engine operation.
• OEM Cross-Reference Verified: Replaces 13101-54101, 13101-54100, 13101-54101-01, 13101-54101-02, 13101-54101-03, 13103-54101 (+0.50), 13105-54101 (+1.00). International brand cross-references include TEIKIN 46256A STD, 46256A050, United Motors PC1234000, PC1234050, SAKURA P30087, Euro4x4parts MP01330.
• Multi-Platform Application: Confirmed compatible with TOYOTA Hilux (LN106, LN107, LN111, LN130, LN141, LN146, LN166, LN171, LN191), Hiace, Dyna 150, Toyoace G15, and 4Runner equipped with 3L engines.

• Loss of engine compression: Worn or stuck piston rings reduce cranking pressure, causing hard starting and noticeable power loss under load.
• Excessive exhaust smoke (blue/white/black): Indicates oil passing rings or incomplete combustion — piston and ring replacement often resolves it.
• Increased oil consumption: Glazed bores or tired ring packs allow oil to enter the combustion chamber, raising operating costs.
• Piston scoring or scuffing: Visible skirt wear or liner wall scoring caused by thermal expansion, insufficient lubrication, or overheating — requires immediate replacement to prevent catastrophic engine failure.
• Knocking or tapping noise: Piston slap or bearing wear requires inspection before further engine operation.

Confirmed Fitment Sources: Toyota Parts Catalogs confirm 13101-54101-01/-02/-03 fitment for Hilux LN141/146/166/171/191 (2001–2026) with Spec STD, MARK 1/2/3. Terrain Tamer confirms fitment for Hilux LN106, LN107, LN111, LN130 3L 2.8L from 8/1988. Euro4x4parts confirms fitment for LY61 2.8D diesel, LN111 2.8D IFS, LN106 2.8D, and LN166 2.8D from 1988–2006. Toyota Parts Catalogs also confirm Dyna 150 LY61L and LY211L applications with 3L engine.

Manufacturing conforms to ISO/TS16949 and ISO9001 quality management system standards. Each piston undergoes 100% quality inspection before packaging. Production adheres to GB1148-82, JB3931-85, and JB3932-85 piston standards.

1. Verify fitment: Confirm piston diameter (96.00 mm), compression height (42.30 mm), and ring groove dimensions (2.0H/2.0/4.0 mm) against removed OEM piston. Verify MARK grade (-01/-02/-03) matches original.
2. Check piston-to-bore clearance: Measure cylinder bore and piston skirt diameter; compare against manual specification. If cylinder bore wear exceeds OEM limits, select appropriate oversize piston (+0.50/+1.00 mm) and bore/hone accordingly.
3. Ring installation: Install rings with correct orientation (top ring marking up); use a ring expander to avoid breaking rings. Stagger ring end gaps at 120° intervals.
4. Check ring end gap: Insert each ring into its cylinder and measure end gap with a feeler gauge. Compare against manual specification.
5. Pin & clip installation: Lubricate pin bore and install piston pin (29 × 74 mm); secure with new circlips (included).
6. Connecting rod torque: Follow manual sequence — always confirm against the specific engine variant manual.
7. Lubricate: Coat rings and cylinder walls with clean engine oil before piston installation. Use a ring compressor for piston insertion.
8. Check liner protrusion: Verify liner protrusion meets specification before final assembly.

• 3L engine oil capacity: approximately 5.5–6.0 L including filter. Replace engine oil every 5,000–10,000 km or 12 months, whichever comes first.
• Oil type: Toyota-approved 10W-30 or 15W-40 API CF/CD.
• Inspect compression and oil consumption at every 50,000 km or annually.
• Replace piston rings and inspect pistons during any top-end overhaul.
• Monitor timing belt and tensioner condition — replace according to TOYOTA service interval (typically every 100,000 km or 5 years).
• ⚠️ 3L 发动机特别注意：3L 发动机为间接喷射柴油机，对燃油品质和喷油泵校准较为敏感。建议定期检查喷油嘴雾化状态和喷油正时，以确保活塞和环组的使用寿命。

• Standard packing: Neutral packaging / corrugated carton; 4 pcs (one set) per box; wooden pallet available for bulk orders.
• Set options: Standard size (STD 96.00 mm), +0.50 mm (96.50 mm), +1.00 mm (97.00 mm) — specify at inquiry.
• Suitable for: Engine rebuild workshops, fleet maintenance departments, spare parts distributors, and export wholesalers.
• Related parts available: Piston ring set (13011-54120), piston pin (29 × 74 mm), circlips, cylinder liner kit (96 mm), and full 3L overhaul kit.