Puchshop.de Puch moped parts
Puchshop wishlist
Puchshop shopping cart
0
View all Pistons Piston ring Piston accessories

Puch piston accessories and assembly tools

Replacing a piston is precision work. Having the right tool for the job is essential when working on a Puch or other moped engine, because small mistakes during measuring, removal or assembly can damage the piston, cylinder, connecting rod or crankcase.

Here you will find piston pins, piston-pin clips, small-end needle bearings, piston-pin bushings and other replacement parts, together with workshop tools such as feeler gauges, piston-pin pushers and piston-stop tools.

Always match replacement parts to the exact piston, cylinder and connecting rod. Check the piston-pin diameter and length, clip size, bearing dimensions and tool application before ordering or beginning assembly.

Piston accessories

Piston clamp / compression tool 38mm - 83mm
Piston clamp / compression tool 38mm - 83mm
Not in stock Not in stock
€ 15,90
Piston stop tool M14x1.25 for Puch / universal
Piston stop tool M14x1.25 for Puch / universal
Directly available Directly available
€ 3,95
Bestseller
Piston stop tool M14x1.25 with nylon head for Puch / universal
Piston stop tool M14x1.25 with nylon head for Puch / universal
Directly available Directly available
€ 5,95
Piston wrist pin 10x36mm
Piston wrist pin 10x36mm
Directly available Directly available
€ 2,50
Piston wrist pin 12x30mm 50cc
Piston wrist pin 12x30mm 50cc
Directly available Directly available
€ 2,90
Piston wrist pin 12x33mm 60cc - 70cc
Piston wrist pin 12x33mm 60cc - 70cc
Directly available Directly available
€ 3,25
Piston wrist pin 12x37mm 74cc Gilardoni / Italkit / Universal
Piston wrist pin 12x37mm 74cc Gilardoni / Italkit / Universal
Directly available Directly available
€ 5,90
Piston wrist pin clip 10mm double G-model (2 pieces)
Piston wrist pin clip 10mm double G-model (2 pieces)
Directly available Directly available
€ 1,25
Piston wrist pin clip 12mm C-model assembly tool Naraku
Piston wrist pin clip 12mm C-model assembly tool Naraku
Directly available Directly available
€ 14,90
Piston wrist pin clip 12mm C-model Malossi (2 pieces)
Piston wrist pin clip 12mm C-model Malossi (2 pieces)
Directly available Directly available
€ 1,50
NEW
Piston wrist pin clip 12mm C-model Vertex
Piston wrist pin clip 12mm C-model Vertex
Directly available Directly available
€ 0,75
Piston wrist pin clip 12mm double G-model
Piston wrist pin clip 12mm double G-model
Directly available Directly available
€ 0,75
Piston wrist pin clip 12mm G-model (2 pieces)
Piston wrist pin clip 12mm G-model (2 pieces)
Directly available Directly available
€ 1,50
Piston wrist pin clip 12mm G-model Malossi (a piece)
Piston wrist pin clip 12mm G-model Malossi (a piece)
Directly available Directly available
€ 0,50
Piston wrist pin needle bearing crankshaft small end 14x13x10mm
Piston wrist pin needle bearing crankshaft small end 14x13x10mm
Directly available Directly available
€ 5,50
Piston wrist pin needle bearing crankshaft small end 15x15x12mm
Piston wrist pin needle bearing crankshaft small end 15x15x12mm
Directly available Directly available
€ 7,50
-17%
Piston wrist pin needle bearing crankshaft small end 15x15x12mm (10 pieces)
Piston wrist pin needle bearing crankshaft small end 15x15x12mm (10 pieces)
Directly available Directly available
€ 75,00
€ 62,50
Piston wrist pin needle bearing crankshaft small end 15x15x12mm Italkit
Piston wrist pin needle bearing crankshaft small end 15x15x12mm Italkit
Not in stock Not in stock
€ 11,90
Bestseller
Piston wrist pin needle bearing crankshaft small end 15x15x12mm Jasil Top Racing
Piston wrist pin needle bearing crankshaft small end 15x15x12mm Jasil Top Racing
Directly available Directly available
€ 9,95
Piston wrist pin needle bearing crankshaft small end 15x15x12mm Malossi MHR
Piston wrist pin needle bearing crankshaft small end 15x15x12mm Malossi MHR
Directly available Directly available
€ 15,90
Piston wrist pin needle bearing crankshaft small end 15x15x12mm Polini
Piston wrist pin needle bearing crankshaft small end 15x15x12mm Polini
Directly available Directly available
€ 15,90
-8%
Piston wrist pin needle bearing crankshaft small end 16.3x15x12mm Wössner
Piston wrist pin needle bearing crankshaft small end 16.3x15x12mm Wössner
Directly available Directly available
€ 12,90
€ 11,90
-16%
Piston wrist pin needle bearing crankshaft small end 16x15x12mm ProX
Piston wrist pin needle bearing crankshaft small end 16x15x12mm ProX
Directly available Directly available
€ 12,70
€ 10,70
Piston wrist pin plain bearing messing crankshaft small end 14x12x12mm
Piston wrist pin plain bearing messing crankshaft small end 14x12x12mm
Directly available Directly available
€ 5,90
Piston wrist pin pusher tool
Piston wrist pin pusher tool
Directly available Directly available
€ 19,90
Tapered feeler gauge tool 0.05 > 1.00mm
Tapered feeler gauge tool 0.05 > 1.00mm
Directly available Directly available
€ 7,60
Showing 1 to 26 of 26 (1 Pages)

Choose the correct piston accessories and tools

Good piston work begins with clean parts, accurate measurements and tools that are suitable for the task. Improvised tools or excessive force can turn a straightforward top-end repair into damage to the piston, connecting rod or crankcase.

Piston pins Connect the piston to the connecting rod. The diameter and length must match the piston and small-end bearing.
Piston-pin clips Secure the piston pin inside the piston. Use the correct clip type and size and make sure each clip is fully seated.
Small-end bearings Support the piston pin in the connecting rod. Check the inner diameter, outer diameter and width before ordering.
Measuring and assembly tools Feeler gauges, piston-pin pushers and suitable holding tools help you work accurately without damaging small engine parts.

The correct tool protects the engine

Moped engines use small, lightweight components that can be damaged easily by hammering, twisting or uncontrolled force. Use a tool that supports the part correctly and allows you to feel whether something is moving normally.

When a piston pin, bearing or clip does not fit smoothly, stop and confirm the dimensions and alignment instead of forcing the part into place.

Piston pins and piston-pin clips

The piston pin passes through the piston and connecting rod, while the clips prevent the pin from moving sideways. Both parts must match the exact piston assembly.

Pin diameter The pin must fit the piston bore and small-end bearing correctly. Even a small difference in diameter can make the part unusable.
Pin length A pin that is too long or too short may not sit correctly between the retaining clips or piston bosses.
Clip design Wire clips, circlips and other retaining designs are not automatically interchangeable. Use the type intended for the piston.
Retaining grooves Inspect the grooves in the piston for dirt, damage or wear before installing new clips.

Always use new piston-pin clips

A piston-pin clip can lose tension or become distorted during removal. Reusing a damaged or weakened clip increases the risk of it coming loose while the engine is running.

Cover the crankcase opening during assembly so a clip cannot fall into the engine. After installation, confirm visually that each clip is completely seated in its groove.

Small-end needle bearings and bushings

The small-end bearing or bushing supports the piston pin at the top of the connecting rod. Its dimensions and condition directly affect piston movement.

Inner diameter Must match the piston-pin diameter without excessive play or binding.
Outer diameter Must fit the small end of the connecting rod correctly.
Bearing width The bearing must fit between the piston bosses without being pinched or leaving unsuitable side clearance.
Condition Replace bearings with worn needles, discoloration, rough movement, corrosion or visible damage.

Lubricate the bearing during assembly

Apply suitable two-stroke oil to the piston pin, small-end bearing and bearing surfaces before assembly. This provides lubrication during the first engine rotations before the fuel mixture reaches the parts.

Useful tools for piston work

The correct workshop tools make measurements more reliable and reduce the need to apply force directly to delicate engine components.

Feeler gauge set Useful for checking piston-ring end gap, clearances and other small measurements during engine assembly.
Piston-pin pusher Helps remove or install the piston pin in a controlled manner without striking the piston or loading the connecting rod sideways.
Piston-stop tool Can hold the crankshaft in a controlled position for suitable jobs. Use only as directed and make sure the tool is appropriate for the engine.
Torque wrench Allows cylinder-head and other fasteners to be tightened evenly to the correct specification during final assembly.

Do not use impact tools with a piston stop

A piston-stop tool transfers force through the piston and connecting rod. Do not combine it with an impact wrench or uncontrolled force, as this can damage the piston crown, connecting rod or crankshaft.

Follow the tool instructions and use the correct holding method for the exact maintenance task.

Removing and installing a piston pin

The piston pin should move through the piston and bearing without hammering. Work slowly and support the piston so that force is not transferred sideways into the connecting rod.

Remove the clips first Make sure the retaining clip is completely removed before attempting to push out the piston pin.
Support the piston Hold the piston securely so the connecting rod is not bent or pushed sideways during pin removal.
Use controlled pressure A suitable piston-pin pusher is safer than hammering the pin through the piston.
Stop if it binds Check alignment, deposits and component dimensions when the pin does not move smoothly.

A tight piston pin should not be forced

Carbon, corrosion, heat damage or incorrect dimensions can make a piston pin difficult to remove. Applying heavy force can crack the piston or bend the connecting rod.

Clean and inspect the assembly and use the correct removal tool rather than striking the pin directly.

Prepare the engine before assembly

Clean the components Remove dirt, carbon and old oil without scratching the piston, pin bore or bearing surfaces.
Protect the crankcase Cover the opening with a clean cloth while working with clips and other small parts.
Inspect the connecting rod Check the small end for discoloration, wear, damage or unusual play before fitting a new piston.
Confirm all dimensions Compare the new pin, clips and bearing with the old components and product specifications before assembly.

Lay out every part before starting

Prepare the piston, rings, pin, clips, bearing, gaskets, lubricant and tools before assembly. This reduces the chance of stopping midway with an unsupported piston or an open crankcase.

Check these details before ordering

Piston and cylinder model Identify the exact piston or cylinder whenever possible.
Piston-pin dimensions Measure the diameter and length and compare them with the product specifications.
Bearing dimensions Confirm the inner diameter, outer diameter and width of the small-end bearing or bushing.
Tool application Make sure the selected tool is suitable for the engine part and maintenance job you are performing.

Complete your Puch piston repair

Piston accessories and tools are often used together with a replacement piston or new piston rings. Inspect the complete cylinder assembly before deciding which parts need to be replaced.

View complete Puch pistons View Puch piston rings

Need help choosing piston accessories?

Send us the piston and cylinder model, visible markings and the measured piston-pin and bearing dimensions. Include clear photos of the piston, connecting rod and old parts when possible.

Contact Puchshop before ordering when you are unsure about pin size, clip design, bearing dimensions or the correct assembly tool.

Frequently asked questions about Puch piston accessories

How do I choose the correct piston pin?

Match the diameter and length to the exact piston, connecting rod and small-end bearing. Compare the old pin and the product specifications before ordering.

Can piston-pin clips be reused?

Reusing them is not recommended. Clips can become stretched or distorted during removal, so new correctly sized clips should be installed.

How do I choose a small-end bearing?

Check the inner diameter, outer diameter and width. The bearing must fit the piston pin, connecting rod and available space between the piston bosses.

Why should I use a piston-pin pusher?

It applies controlled pressure to the pin and reduces the risk of cracking the piston or pushing the connecting rod sideways compared with hammering.

Can I use an impact wrench with a piston-stop tool?

No. Impact force can be transferred through the piston and connecting rod and may cause engine damage. Use the correct holding method and hand tools for the job.

Which tools are most useful for piston assembly?

Useful tools include a feeler gauge set, piston-pin pusher, suitable retaining-clip tools, torque wrench and the correct holding tools for the engine.

Our customers are very happy with our service!
Puchshop WhatsApp Contact