MAINS BOLT 1300 - 7/16" x 2.75" LONG
12G1398

£2.12 exc vat

£2.54 inc vat

In stockIn stock
I've never broken a main bearing cap bolt, but then when I build a high performance engine I like to replace them as they stretch.

Sold singly 6 required per engine.

£2.12 exc vat

£2.54 inc vat

In stockIn stock

Recommended usage 6 x 12G1398 to fit one mini.
Block Components & Pistons - Qty 6
Engine and Block 1275cc - Qty 6

Alternative products

special bolts for minispres centre main C-AGA619 or same length and use as 12G1398

People also bought products

Lightweight billet aluminium distributor hole blanking plug for A+ engines.

Replace with new camshaft,it's almost too easy to overlook during a rebuild. Camshaft bearings are pressed into the block and thus are usually done by a machine shop. You would not rebuild an engine without replacing the rod bearings, so why not the ...

Timing cover front plate and tensioner plate bolt and washer kit. Comes with all parts to fit the cover except for the counter sunk screws if fitting a duplex kit (our duplex kits all come with these).

This is the large seal for the early type oil filter assembly pre spin on type.

Fitting kit comprising of studs, nuts, plain washers, spring washers and a gasket

Replacement O ring for the Minispares range of chrome dipticks

This kit of head studs is the best available for road and lightly tuned engines. See the C-AHT280 set for highly tuned engines.

The material spec is alloy steel heat treated to 75 tensile tons per square foot minimum and finish...

You should replace the camshaft bearings every time the block goes to the machine shop. These bearings fit all late model 1275cc blocks (the ones without tappet covers on the back) It's almost too simple and thus often overlooked during a rebuild. Ca...

ARP Head stud kit that compromises of;

4 x Long Head Studs

7 x Short Head Studs (Disregard 2 if you're using a 9 stud application)

11 x Multipoint ARP nuts

11 x Heavy Duty Washers

4 x Rocker post studs <...

Mini Spares best quality complete gasket and seal kit for engine block and gearbox,for all common engine types and sizes.



Also comes complete with Mini Spares Evolution clutch oil seal 13H2934MS, differential oil seals...

ACL Race Bearings



ACL Race series bearings are precision manufactured to a wall thickness of ±0.0040mm giving engine builders close control of vertical oil clearance.

What is the purpose of ACL Race series bearings?
...

ACL Race Bearings



ACL Race series bearings are precision manufactured to a wall thickness of ±0.0040mm giving engine builders close control of vertical oil clearance.

What is the purpose of ACL Race series bearings?
...

ACL Race Bearings



ACL Race series bearings are precision manufactured to a wall thickness of ±0.0040mm giving engine builders close control of vertical oil clearance.

What is the purpose of ACL Race series bearings?
...

ACL Race Bearings



ACL Race series bearings are precision manufactured to a wall thickness of ±0.0040mm giving engine builders close control of vertical oil clearance.

What is the purpose of ACL Race series bearings?
...

ACL Race Bearings



ACL Race series bearings are precision manufactured to a wall thickness of ±0.0040mm giving engine builders close control of vertical oil clearance.

What is the purpose of ACL Race series bearings?
...

Parts required to stop timing chain rattle on A plus engine using special anti stretch single row chain 3H2127EVO.Last chance to buy with the plate and pin to hold the tensioner as they are obsolete from Rover.

Fitted to 998/110...

UK made-EN24T allen key head extra strong 5/16"unf rocker adjusting screw, original screws are often worn but rarely inspected, both ends of this complex screw are often worn and in dire need of replacement. Most available on the market are imported ...