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Engine block Volvo B21

Leaking freeze plugs and weeping block seams are classic checkpoints on the 2.1-liter OHC B21 engine in the Volvo 240 and 260. Rust around the freeze plugs can point to aged coolant or poor corrosion protection, and should be checked before the block is reassembled.

All products in category: Engine block Volvo B21

Dana Glaser
-25%
Decarbonising kit for Volvo B17A, B19A, B21A

Decarbonising kit for Volvo B17A, B19A, B21A

240

$ 50.43/piece
$ 67.24
You save 25%
Model year:
1975–1989
Engine:
B17A, B19A, B21, B21A, B23

OE numbers

270676275578315961
Dana Glaser
-25%
Decarbonising kit for Volvo B19E, B21E

Decarbonising kit for Volvo B19E, B21E

240, 740

$ 49.58/piece
$ 66.11
You save 25%
Model year:
1975–1989
Engine:
B19E, B21, B21E, B23

OE numbers

270677275579315962
CVR Engineering
-10%
Supplementary kit for Volvo 240, 740, B17-B230A/K, 1975-90

Supplementary kit for Volvo 240, 740, B17-B230A/K, 1975-90

240, 740

$ 52.38/piece
$ 58.20
You save 10%
Model year:
1975–1990
Engine:
B17, B230A, B230K

OE numbers

270678275580370961

Plug engine block for Volvo B21

260, 240

$ 21.92
Engine:
B21

OE numbers

1277419
Volvo Original
Servo hose nipple for Volvo B200K, B230K

Servo hose nipple for Volvo B200K, B230K

Amazon, 1800, 140, 240, 740, 760

$ 14.58
Mounting position:
Intake manifold to brake servo
Model year:
1968–1985
Engine:
B200K, B230K

OE numbers

943199
Volvo Original
Engine block sleeve for Volvo B17, B19, B21, B23

Engine block sleeve for Volvo B17, B19, B21, B23

240, 260, 760, 740, 780, 960, 940

$ 12.88
Mounting position:
Crank case
Model year:
1975–1989
Engine:
B17, B19, B21, B23
Quantity per car:
Sold per piece

OE numbers

415311
Volvo Original
Drain valve B17, B19, B21, B23 for Volvo 240, 740, 940

Drain valve B17, B19, B21, B23 for Volvo 240, 740, 940

240, 740, 760, 780, 960, 940, 850

$ 10.06
Mounting position:
Crank case
Model year:
1975–1998
Engine:
B17, B19, B21, B23

OE numbers

96672312361813531384
Plug 3/8" engine block for Volvo 140, 164, 240, 740, 940

Plug 3/8" engine block for Volvo 140, 164, 240, 740, 940

164, 140, 260, 240, 760, 780, 740, 940, 960

$ 8.36
Model year:
1975-
Thread:
3/8"
Engine:
B200, B20A, B21, B23, B230, B28E

OE numbers

946559
Volvo Original
-5%
Main bearing bolt for Volvo B17, B19, B21, B23

Main bearing bolt for Volvo B17, B19, B21, B23

240, 740, 760, 780, 960, 940

$ 7.09
$ 7.46
You save 5%
Mounting position:
Crankshaft, Main bearing housing
Model year:
1975–1989
Thread:
M12
Engine:
B17, B19, B21, B23
Show more

OE numbers

970908945799
CVR Engineering
-25%
Timing cover gasket for Volvo 240, 740, 760, 780, 940, 960, 940 1975-98

Timing cover gasket for Volvo 240, 740, 760, 780, 940, 960, 940 1975-98

260, 240, 780, 760, 740, 960, 940

$ 3.39
$ 4.52
You save 25%
Position:
Front
Mounting position:
Crankcase to crankshaft flange
Model year:
1975–1998
Engine:
B200, B21, B23, B230
Show more

OE numbers

13784931276817463359
Volvo Original
Pin for Volvo PV, 164, 240

Pin for Volvo PV, 164, 240

PV, Amazon, 164, 240, 260, 760, 780, 740, 940, 960, 850

$ 3.96
Model year:
1957–1989
Engine:
B16, B21, B23
Quantity per car:
Sold per piece

OE numbers

950562
Volvo Original
Cylinder head guide pin for Volvo B20E, B20F

Cylinder head guide pin for Volvo B20E, B20F

1800, 140, 240, 780, 760, 740, 960, 940

$ 3.39
Mounting position:
Inlet/exhaust manifold to cylinder head
Model year:
1968–1973
Engine:
B20, B20E, B20F, B21, B23
Quantity per car:
6

OE numbers

950586

Engine block plug for Volvo B17, B19, B21, B23

240, 740, 760, 780

$ 2.94
Model year:
1975–1989
Engine:
B17, B19, B21, B23

OE numbers

192539
-10%
Stud bolt for Volvo 740, 760

Stud bolt for Volvo 740, 760

260, 240, 780, 760, 740, 960, 940

$ 2.44
$ 2.71
You save 10%
Thread:
M6
Quantity per car:
Sold per piece

OE numbers

924055
-10%
Intake manifold plug for Volvo PV, Duett, Amazon, 140, 164, 1800, 240, 260, B16, B18, B20, B30, BW35

Intake manifold plug for Volvo PV, Duett, Amazon, 140, 164, 1800, 240, 260, B16, B18, B20, B30, BW35

Duett, PV, Amazon, 1800, 164, 140, 240, 260, 780, 760, 740, 960, 940

$ 2.04
$ 2.26
You save 10%
Mounting position:
Crank case
Model year:
1957–1973
Engine:
B16, B18, B20, B21, B23, B30
Quantity per car:
Sold per piece

OE numbers

952075
-10%
O-ring oil pipe for Volvo 240, 740, 760, 780, 940, 960

O-ring oil pipe for Volvo 240, 740, 760, 780, 940, 960

260, 240, 780, 760, 740, 960, 940

$ 2.04
$ 2.26
You save 10%
Mounting position:
Oil trap, Distributor
Model year:
1975–1998
Engine:
B200E, B200F, B21, B23, B230E, B230F, B230K
Type:
O-ring

OE numbers

949659925065967513
-10%
Freeze plug 52 mm for Volvo 164, 240, 740, 940 1975-93

Freeze plug 52 mm for Volvo 164, 240, 740, 940 1975-93

164, 260, 240, 780, 760, 740, 960, 940

$ 2.03
$ 2.26
You save 10%
Model year:
1981–1993
Dimensions:
Ø 52 mm
Engine:
B21, B23
Type:
Disc type

OE numbers

463905430160
-10%
Frost plug D = 45 mm for Volvo PV, Duett, Amazon 1962-70, 1800, 164, B18, B20, B30

Frost plug D = 45 mm for Volvo PV, Duett, Amazon 1962-70, 1800, 164, B18, B20, B30

PV, Duett, Amazon, 1800, 164, 740, 760, 780

$ 1.94
$ 2.15
You save 10%
Mounting position:
Crank case
Model year:
1961–1973
Dimensions:
Ø 45 mm (1.77 in)
Engine:
B18, B20, B30
Show more

OE numbers

41871846390495104
Screw M8-1.25x20 for Volvo PV, Duett, 140, 164, 1800, 240, 260, 740, 760, 780, 940, 960, S40, V40, S90, V90

Screw M8-1.25x20 for Volvo PV, Duett, 140, 164, 1800, 240, 260, 740, 760, 780, 940, 960, S40, V40, S90, V90

PV, Duett, 1800, 140, 164, 260, 240, 780, 760, 740, 960, 940

$ 0.23
Model year:
1961–1989
Thread:
M8x1.25
Engine:
B18, B20, B21A, B23A, B23E
Quantity per car:
Sold per piece

OE numbers

955295105209902279

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This category gathers sealing and supplementary parts for the block itself. The group includes freeze plugs and plugs, O-rings, nipples and plugs, plus studs and soot cleaning kits used during a rebuild or when replacing the cylinder head. Since the B21 was built in several versions over the course of the 240/260 years, it is worth checking plug and thread dimensions against your specific engine before ordering.