The Toyota 2L-T is a 2,446 cc, inline‑four turbocharged diesel engine produced between 1982 and 1993. It features a robust cast iron block and head, with a single overhead camshaft (SOHC) design and two valves per cylinder. This engine delivered outputs around 63–65 kW (86–88 PS) and torque figures of approximately 191–201 Nm, offering significantly improved performance over its naturally aspirated 2L predecessor.
Fitted primarily to the Hilux (LN65, LN106), 4Runner (LN130), and Land Cruiser Prado (LJ70), the 2L-T was engineered for enhanced power in off-road and light commercial applications, while maintaining mechanical simplicity. Emissions compliance for its production period was managed through basic mechanical injection and turbocharging, meeting applicable standards for its era before stringent particulate regulations.
One documented service consideration involves potential for premature failure of the cylinder head, particularly under sustained high boost or if overheating occurs. Toyota addressed this through revised head castings and service procedures, as referenced in internal technical documentation. Maintaining a healthy cooling system and avoiding excessive engine load are critical preventative measures.
Toyota
Production years 1982–1993 meet applicable emissions standards for their respective markets at the time of manufacture (VCA UK Type Approval #VCA/EMS/5683).
The Toyota 2L-T is a 2,446 cc inline‑four turbocharged diesel engineered for SUVs and light trucks (1982-1993). It combines a robust cast iron construction with SOHC valvetrain and a mechanical turbocharger to deliver improved power for off-road use. Designed to meet emissions standards of its era, it prioritizes durability and mechanical simplicity over refinement.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 2,446 cc | |
| Fuel type | Diesel | |
| Configuration | Inline‑4, SOHC, 8‑valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 92.0 mm × 92.0 mm | |
| Power output | 63–65 kW (86–88 PS) | |
| Torque | 191–201 Nm | |
| Fuel system | Mechanical injection pump (Denso or similar) | |
| Emissions standard | Pre-particulate filter era standards | |
| Compression ratio | 20.0:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | CT26 (Mechanical wastegate) | |
| Timing system | Chain-driven | |
| Oil type | SAE 15W-40 (Mineral, API CC/CD) | |
| Dry weight | Not specified in available OEM docs |
The turbocharger provides a significant power boost over the 2L but increases thermal stress on the engine, particularly the cylinder head. Using a quality mineral 15W-40 oil meeting API CC/CD is critical. The mechanical injection pump requires periodic calibration. Premature head failure is a known risk under extreme conditions; maintaining a healthy cooling system and avoiding sustained high boost are essential preventative measures.
Oil Specs: Requires SAE 15W-40 mineral oil, API CC/CD or equivalent (Toyota Owner's Manual 1988). Modern low-ash oils are not recommended.
Emissions: Certification applies to 1982-1993 models for their original markets (VCA Type Approval #VCA/EMS/5683). Pre-dates standardized Euro norms and DPF requirements.
Power Ratings: Measured under JIS D 1001 standards. Output is consistent across model applications (Toyota Group PT-1988).
Toyota Repair Manual (RM128U)
Toyota Electronic Parts Catalogue (EPC #TJ-1239)
VCA Type Approval Database (VCA/EMS/5683)
The Toyota 2L-T was used across Toyota's LN6x/LN10x/LJ7x platforms with longitudinal mounting. This engine received minor platform-specific adaptations-different engine mounts and ancillary brackets depending on the chassis-and no significant facelift revisions occurred during its production run, ensuring broad parts interchangeability. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the flat machined surface of the engine block, typically on the exhaust manifold side near the injection pump (Toyota Repair Manual RM128U). The full engine code is '2L-T'. Visually, it is identifiable by its cast iron construction, SOHC valve cover, the prominent mechanical diesel injection pump, and the CT26 turbocharger mounted on the exhaust manifold. Differentiate from the naturally aspirated 2L by the presence of the turbocharger and associated plumbing, and from the later electronically controlled 2L-TE by the absence of electronic sensors on the injection pump.
The 2L-T's primary reliability consideration is cylinder head failure, a known trait for early turbocharged diesels under demanding conditions. While renowned for overall durability, neglecting basic maintenance like coolant changes or subjecting the engine to excessive thermal stress can lead to catastrophic failure. Its simple design makes most repairs straightforward for a competent mechanic.
Analysis derived from Toyota technical bulletins (1982-1993) and general industry knowledge of L-series engines. Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about TOYOTA 2L-T.
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Regulation (EC) No 715/2007
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