Part of the Kubota Parts Manuals.
This Kubota AT70S-AMERICA Parts Catalog runs 69 pages with a single purpose: showing every part on your AT70S tiller, from the cylinder down to the tine shaft. Exploded views cover the tiller's major assemblies, among them the carburettor component parts, transmission case, gear, magneto, and rotary case. Each callout ties a numbered component to its exact part number, so the right gear or shaft goes in your cart the first time. A full product index sits alongside dedicated Option Parts and Accessories listings. Match the camshaft shim at 0.20 mm, or pull the +0.25 mm oversize connecting rod service set once a crank has been reground. No more squinting at a smeared number and ordering the wrong piece twice. Every assembly is bookmarked: tap one and land straight on its parts page, whether you're on a laptop, tablet, or phone in the shop.
What's Inside This Kubota AT70S-AMERICA Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Fuel System | Air Cleaner, Governor Lever, Carburettor, Fuel Tank | |
| Engine | Breather, Muffler, Camshaft, Piston and Crankshaft | |
| Electrical System | Recoil Starter | |
| Clutch & Transmission | Transmission Case, Shift Fork | |
| Hydraulics & 3-Point Hitch | Cylinder | |
| Body & Operator Station | Rotaty Cover, Side Cover, Front Frame, Belt Cover | |
| Decals & Accessories | Label, Accessories and Service Parts | |
| Other Components | Magneto, Gear, Tension Pulley, Axle, Tire, Chain Case, Rotary Case, Tillage Drive Shaft, Tine Shaft, Tine Change Lever, Handle, Change Lever 1, Change Lever 2, Furrower, Option Parts |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| SHIM | 0.20MM | p. 13 |
| CON/ROD,SERVICE SET | +0.25MM | p. 15 |
| Comp. Cylinder Weight | 6.8 kgf | p. 5 |
| Comp. Muffler Weight | 1.3 kgf | p. 11 |
| Camshaft Shim Thickness | 0.20MM | p. 13 |
| Connecting Rod Service Set (Oversize) | +0.25MM | p. 15 |
| Crankshaft Weight | 2.23 kgf | p. 15 |
| Crankshaft Shim Thickness | 0.40MM | p. 15 |
| Assy Magneto Weight | 6.2 kgf | p. 21 |
| Assy Weight, Wheel Weight | 25 kgf | p. 67 |
| Assy Weight, Front Weight | 14 kgf | p. 67 |
| Weight, Wheel Weight | 10.45 kgf | p. 67 |
Kubota AT70S-AMERICA Common Problems This Manual Covers
Tiller feels down on power and the cylinder and gasket part numbers for a replacement order aren't obvious p. 5
Open the cylinder parts list on page 5. Match the cylinder body, head gasket, and mounting bolts against the numbered callouts in the exploded view. The complete cylinder assembly weighs 6.8 kgf, so confirm you're ordering the single component, not the full assembly. Cross-check the part numbers against your serial number range in the parts index.
Manual Section: CylinderNo spark, no start, and you need the complete magneto assembly part number p. 21
Inspect the magneto exploded view on pages 20 and 21. Decide whether you need individual components or the complete unit. The assembled magneto is listed at 6.2 kgf and carries its own part number, separate from the flywheel and coil. Cross-reference your serial number range in the parts index before ordering to confirm fitment.
Manual Section: MagnetoEngine runs rough and lacks power, and the correct camshaft shim thickness isn't clear p. 13
Measure your old shim with a micrometer, then turn to the camshaft exploded view on pages 12 and 13. The standard shim is listed at 0.20MM thickness with its own part number. Match it to the parts list callout, then verify the camshaft and bearing numbers against your serial number range in the parts index.
Manual Section: CamshaftCrankshaft journal worn after a rebuild, and the oversize connecting rod service set part number is unknown p. 14
Compare your reground journal to the oversize options in the piston and crankshaft parts diagram on page 14. The connecting rod service set is available in +0.25MM oversize with its own part number. Confirm the crankshaft and shim numbers against your serial range in the parts index.
Manual Section: Piston and CrankshaftMuffler has rusted through and needs replacing, but the assembly and gasket part numbers are hard to find p. 11
Locate the muffler exploded view on pages 10 and 11. Match the muffler body, gasket, and mounting bolts to the numbered callouts in the parts list. The complete muffler assembly is listed at 1.3 kgf, so decide whether you need the full unit or individual parts. Cross-reference the numbers with your serial number range before ordering.
Manual Section: MufflerFrequently Asked Questions
What are the replacement specifications for spark plug?
Part number 12366-67710 is the spark plug for the AT70S-AMERICA. It appears in the Magneto assembly section under reference number 010.
What are the replacement specifications for carburetor?
Which carburetor assembly you order depends on the tiller's serial number. Serial numbers up to 551979 take part 13415-44013. From 551980 up, it's 13415-44014, 13415-44015, or 13415-44016, depending on the exact serial range.
What camshaft shim thickness does the AT70S-AMERICA use?
The camshaft shim is 0.20MM thick. Find the shim and its part number in the camshaft exploded view on pages 12 and 13. Match the callout number to the parts list to confirm the correct shim before ordering.
What oversize connecting rod service set fits a reground AT70S-AMERICA crankshaft?
The connecting rod service set is available in +0.25MM oversize (p. 15). Compare your reground crankshaft journal to the options in the piston and crankshaft parts diagram, then confirm the part number against your serial number range in the parts index.
How quickly can I access this manual after buying?
Immediate download of the complete 69-page searchable Parts Catalog. Read it on any device: a laptop at your desk or a phone in the field.
Are there any print restrictions on this manual?
No restrictions at all. Print individual pages, full chapters, or the entire manual. The PDF is completely unlocked.
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