MGB Valves & Valve Springs - 4 Cylinder

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Part No.: GRID019575

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Exhaust Valve Guide - 12B1339

2.203 inches long

Also does MGC inlet

Qty Req-4

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12B1339

In stock

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£1.25 ex VAT£1.50 inc UK VAT

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Exhaust Valve Guide Uprated - Bronze - MGB - 12B1339UR

Qty Req-4

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12B1339UR

In stock

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£9.25 ex VAT£11.10 inc UK VAT

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Inlet Valve Guide - 12H2222

1.875 inches long

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12H2222

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Uprated Inlet Valve Guide - Bronze - MGB - 12H2222UR

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12H2222UR

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£9.75 ex VAT£11.70 inc UK VAT

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Inlet Valve - 1.56 Dia - 12H435

Model-18G, GA, GB, Early 18GD Engines, Item Info 2-slot type cotter groove, Qty Req-4

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12H435

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£3.50 ex VAT£4.20 inc UK VAT

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Inlet Valve - 1.56 Dia - 12H4211

Model-Late 18GD, 18GG - Also 18V 846/847 On (Rubber Bumper), Item Info 2-circular cotter groove, Qty Req-4

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12H4211

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£3.25 ex VAT£3.90 inc UK VAT

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Inlet Valve - 1.62 Dia - 12H2520

Model-18V 581/582/583/779/780 (Chrome Bumper), Item Info 2-circular cotter groove, Qty Req-4

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12H2520

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£3.50 ex VAT£4.20 inc UK VAT

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Inlet Valve Set - Performance S/S 1.56 - RP1682

Set of 4 stainless steel inlet valves with waisted stem.

Qty Req-1

5 out of 5 starsRead 1 Review(s)Rate and Review this Product

RP1682

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£53.50 ex VAT£64.20 inc UK VAT

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Inlet Valve Set - Performance S/S 1.62 - RP1683

Set of 4 stainless steel inlet valves with waisted stem.

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RP1683

No longer available

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Inlet Valve - Competition - MGB 42.9 mm - Each - TMG10734

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TMG10734

In stock

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£19.50 ex VAT£23.40 inc UK VAT

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Exhaust Valve - 1.34 Dia - 12H436

Model-18G, GA, GB, Early 18GD Engines, Item Info 2-slot type cotter groove, Qty Req-4

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12H436

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£5.75 ex VAT£6.90 inc UK VAT

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Exhaust Valve - 1.34 Dia - CAM1717

Model-Late 18GD, 18GG, 18V, Item Info 2-circular cotter groove, Qty Req-4

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CAM1717

Out of stock, expected soon Mar 19, 2026. Add to cart and Back Order

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£3.75 ex VAT£4.50 inc UK VAT

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Exhaust Valve Set - Performance S/S 1.34 - RP1684

Set of 4 stainless steel inlet valves with waisted stem.

Qty Req-1

5 out of 5 starsRead 1 Review(s)Rate and Review this Product

RP1684

2 in stock

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£53.50 ex VAT£64.20 inc UK VAT

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Exhaust Valve - Competition - MGB 36.6mm - Each - TMG10735

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TMG10735

In stock

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£19.50 ex VAT£23.40 inc UK VAT

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Seat - Valve Spring - 1H1321

Model-18G Series, Item Info 2-double valve spring, Qty Req-8

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1H1321

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£1.50 ex VAT£1.80 inc UK VAT

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Valve Spring Seat - 12H3354

Model-18V Series, Item Info 2-single valve spring, Qty Req-8

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12H3354

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£1.50 ex VAT£1.80 inc UK VAT

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Valve Spring Outer - 12H1679

Model-18G Series, Item Info 2-double valve springs - outer, Qty Req-8

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12H1679

In stock

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Valve Spring - 12H3352

Model-18V Series, Item Info 2-single valve springs, Qty Req-8

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12H3352

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Valve Spring - Standard - Double - Inner - 602241

Model-Double Valve Springs - 18G Series, Qty Req-8

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602241

In stock

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£1.00 ex VAT£1.20 inc UK VAT

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Valve Cap - 12H992

Model-18G, GA, GB, Early 18GD, Item Info 2-double valve springs - slot type cotter groove, Qty Req-8

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12H992

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£2.25 ex VAT£2.70 inc UK VAT

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Valve Spring Cap - Steel - For Double Valve Springs (Circular Cotter Groove) - 12H3309

Model-Late 18GD, 18GG, Qty Req-8

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12H3309

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£3.00 ex VAT£3.60 inc UK VAT

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Valve Spring Cap - Alloy - For Double Valve Springs (Circular Cotter Groove) - 12H3309A

Model-Late 18GD, 18GG, Item Info 2-double valve springs - circular cotter groove - alloy alternative, Qty Req-8

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12H3309A

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£2.50 ex VAT£3.00 inc UK VAT

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Valve Cap - 12H3353

Model-18V Series, Item Info 2-single valve springs, Qty Req-8

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12H3353

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£5.50 ex VAT£6.60 inc UK VAT

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Valve Cotter - 1K800

Item Info 2-slot type cotter groove, Qty Req-16

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1K800

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Valve Cotter - AHU1709A

Item Info 2-circular cotter groove, Qty Req-16

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AHU1709A

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£1.75 ex VAT£2.10 inc UK VAT

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Valve Stem Oil Seal - AEK113

Refer to Rocker Feed Kit & Oil Consumption.

Item Info 2-valve stem, Qty Req-8

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AEK113

In stock

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£0.20 ex VAT£0.24 inc UK VAT

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Valve Stem Oil Seal Uprated Spec - AEK113UR

Item Info 2-only fits with single valve springs, Qty Req-8

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AEK113UR

In stock

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"Have been a Rimmer Bros customer for around 10 years, always pleased with the service and help from staff." Customer Comment

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MGB Valves & Valve Springs - 4 Cylinder

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MGB Valves & Valve Springs - 4 Cylinder

Unsure what part you need? Contact our team of experts to talk makes, models, performance, and parts!! With over 42 years in business, our team are here to help you rebuild, restore, and maintain your car. Contact our team to talk makes, models, performance, and parts!!

Unsure what part you need?

Contact our team of experts to talk makes, models, performance, and parts!! With over 42 years in business, our team are here to help you rebuild, restore, and maintain your car.

Contact our team to talk makes, models, performance, and parts!!