Stainless steel pushrod tube
2V models since 9/75 (not...
Piston ring set
R100 models
Only for models with...
Duplex timing chain with chain link
/5 to /7 models...
Simplex timing chain
All 2V boxer models since...
Chain guide rail for chain tensioner Simplex
For all 2...
Stainless steel pushrod tube
for R2V models up to...
Chain tensioner Simplex
for all 2 valve boxer models...
Tool for pushrod protection tube 18mm
2V models since...
Piston for chain tensioner Simplex
for all 2 valve...
Spring for chain tensioner Simplex
for all 2 valve...
Spring for chain tensioner Duplex
for all /5, /6, /7...
Duplex timing chain link
/5 to /7 models
Duplex...
Tool for pushrod protection tube 16mm
2V models until...
Chain tensioner Duplex
for all /5, /6, /7 models until...
Timing Plug. Black rubber.
Replacement timing plug in...
High-quality engine parts are essential for the reliable operation, longevity, and performance of your classic BMW boxer engine. For your BMW R100GS, BMW R100GS Paris Dakar, BMW R100R, BMW R100RS Classic, or BMW R100RT Classic, Hornig offers a selection of premium components specifically developed for air-cooled two-valve boxer engines. These engine parts support you in maintenance, repairs, or refurbishment – ensuring your boxer runs reliably and delivers optimal performance.
The valve train is one of the most heavily stressed areas of the engine. High-quality stainless steel pushrod tubes reliably protect the valve pushrods from wear and corrosion. Hornig offers these tubes in versions for models with an 18 mm diameter as well as 16 mm versions – suitable for different R2V boxer engines depending on model year and variant. Using these durable tubes can significantly increase the lifespan of the valve train.
The timing chain ensures correct synchronization between the crankshaft and camshaft and is essential for smooth engine operation. At Hornig, you can find both the classic duplex timing chain with master link and the slightly lighter simplex timing chain with master link. Complementary components such as the chain tensioner guide rail for simplex and suitable chain tensioners ensure consistent chain tension and reduce wear and running noise.
A properly tensioned timing chain drive is crucial for smooth valve operation. Hornig offers simplex chain tensioners and duplex chain tensioners – combined with matching springs or pistons for chain tensioners – allowing you to set the correct tension for simplex or duplex timing chains. These components help prevent the timing chain from skipping and avoid engine damage.
For engine overhauls or when compression decreases, the piston ring set is a crucial component. This set includes new rings that reliably seal compression pressure in the combustion chamber, thereby improving engine performance, smoothness, and efficiency. Especially for R100 models with Nikasil coating, high-quality piston rings are an important factor in achieving long-lasting engine performance.
Small but important parts such as the installation mandrel for fitting pushrod tubes and the inspection port plug are also part of the engine parts range. These accessories not only make installation easier but also ensure that unused openings in the engine block are properly sealed – contributing to the reliability and maintenance of your engine.
With increasing mileage or after long periods of inactivity, engine components can wear out, lose tension, or operate imprecisely. Replacing worn chains, springs, protective tubes, or piston rings ensures that your BMW R100 runs again with consistent compression and precise timing. This not only reduces unpleasant noises and performance loss but also effectively prevents long-term engine damage.
All engine parts in the Hornig range are precisely tailored to the air-cooled two-valve boxer engines of the BMW R100 family – from early /5 and /6 models to later Paralever variants. With these high-quality spare parts, you ensure that your boxer engine operates reliably, durably, and with strong performance – whether in daily use, on long tours, or in restored classic motorcycles.