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The Toyota B engine family was a series of inline-4 diesel engines.

Toyota also had a 3.4 L (3389 cc) inline-6 gasoline engine from 1937 to 1947 that was also called the B engine. The earlier engine was used in early Toyota cars and trucks and in the first version of the Land Cruiser when it was know as the BJ Jeep. The later engine was used in later versions of the Land Cruiser. The two engines are unrelated and were not made at the same time.

Toyota made 5 generations of the B family engines, each one identified with a number before the B letter. Also, Toyota uses a series of letters to identify technical improvements to their engines:

- The number 1 (one) before the number of the engine model means that the engine uses direct injection, otherwise, indirect injection

- The F letter after the B letter means that the engine is multivalvular. In the B family, as they are 4 inline, that means that the engine uses 16 valves.

- The T letter, means that the engine is turbocharged

- The E letter, means that the engine use an intercooler

For example, the 15B-FTE Engine is the fifth generation of the B engines, comes with 16 valves, is turbocharged and use an intercooler.

Code	Capacity (cc)	Bore (mm)	Stroke (mm)	Direct injection	Turbo	Intercooler
B	2977	95	105
2B	3168	98	105
3B	3431	102	105
13B	3431	102	105	yes
13B-T	3431	102	105	yes	yes
4B	3661	102	112
14B	3661	102	112	yes
14B-T	3661	102	112	yes	yes
5B	4104	108	112
15B-F	4104	108	112	yes
15B-FTE	4104	108	112	yes	yes	yes

Contents 1 B 2 2B 3 3B 4 13B 4.1 13B-T 5 4B 6 14B 6.1 14B-T 7 5B 8 15B 8.1 15B-F 8.2 15B-FTE

[edit] B

The B is a 2.9 L (2977 cc) inline 4 8 Valve OHV diesel engine. Bore is 95 mm and stroke is 105 mm, with a compression ratio of 21:1. Output is 80 hp (59.6 kW) at 3600 rpm with 141 ft·lbf (190.9 N·m) of torque at 2200 rpm.

Applications

• Toyota Land Cruiser
• Toyota Dyna

[edit] 2B

The 2B is a 3.1 L (3168 cc) inline 4 8 Valve OHV diesel engine. Bore is ?? mm and stroke is ?? mm, with a compression ratio of 21:1. Output is 93 hp (69 kW) at 2200 rpm with 159 ft·lbf (215 N·m) of torque at 2200 rpm.

Applications

• Toyota Land Cruiser ( BJ41 / 44 JDM )
• Toyota Coaster ( BB10 / 15 )

[edit] 3B

The 3B is a 3.4 L (3431 cc) inline 4 8 Valve OHV diesel engine. Bore is 102 mm and stroke is 105 mm, with a compression ratio of 20:1. Output is 90 hp (67 kW) at 3500 rpm with 210 ft·lbf (285 N·m) of torque at 2000 rpm.

[edit] 13B

The 13B is a 3.4 L (3431 cc) inline 4 8 Valve OHV direct injection diesel engine. Bore is 102 mm and stroke is 105 mm, with a compression ratio of ?:1 (same as the 3B but with direct injection). Output is ? hp (? kW) at ? rpm with ? ft·lbf (? N·m) of torque at ? rpm.

[edit] 13B-T

The 13B-T is a turbocharged version of the 13B engine, with a compression ratio of 17.6:1. Output is 120 hp (89 kW) at 3400 rpm with 159 ft·lbf (284 N·m) of torque at 2200 rpm.

[edit] 4B

The 4B is a 3.6 (3661 cc) inline 4 8 valve OHV diesel engine. Bore is 102mm and stroke is 112mm.

[edit] 14B

The 14B is a 3.6 (3661 cc) inline 4 8 valve OHV direct injection diesel engine. Bore is 102mm and stroke is 112mm, with a compression ratio of 18:1. Output is 98 hp (72 kW) at 3400 rpm with 240Nm of torque at 1800 rpm.

[edit] 14B-T

The 14B-T is a turbocharged version of the 14B engine.

[edit] 5B

The 5B is a 4.1 L (4104 cc) inline 4 8 valve OHV diesel engine. Bore is 108 mm and stroke is 112 mm.

[edit] 15B

[edit] 15B-F

The 15B-FTE is a 4.1 L (4104 cc) inline 4 16 valve OHV direct injection diesel engine (same configuration as the 15B-FTE but no turbo and intercooler). Bore is 108 mm and stroke is 112 mm. Output is 115 hp (85kW) at 3200 rpm and 290 Nm of torque at 2000 rpm.

[edit] 15B-FTE

The 15B-FTE is a 4.1 L (4104 cc) inline 4 16 valve OHV direct injection turbo intercooled diesel engine. Bore is 108 mm and stroke is 112 mm, with a compression ratio of 17.8:1. Output is 153 hp (114 kW) at 3200 rpm with 282 ft·lbf (382 N·m) of torque at 1800 rpm.

Applications

• Toyota Mega Cruiser