The heaviest tooth in the J-series
A 135-9800 weighs about as much as a small hydraulic breaker chisel: 100 kg in one catalogue, 202.4 lb / 91.81 kg in the other. Two men do not fit one to a bucket lip by hand, and that single fact shapes everything about ordering this tooth — how many fit in a container, how the load is declared, and why the base under it has to be right the first time.
It is the loader-side point of the J800 rung. Black Cat's J-series adapter table lists J800 at a 4.00 in strap, the thickest in the table, against the Cat 994 wheel loader. TRASTEEL prints its J800 two-strap standard weld-on row for 385 / 390 class buckets. Everything on that nose shares one base — 6I-8804 — and one hardware pair.
The penetration line, rung by rung
The most common ordering mistake on this tooth is quoting it one rung low. The loader penetration HD family runs across three series, and no casting is shared:
| Series | Number | Weight (Black Cat) | Base |
|---|---|---|---|
| J600 | 135-9600 | 130.0 lb / 58.97 kg | J600 rung (6I-6604 family), pin 6I-6608 |
| J700 | 135-9700 | 147.9 lb / 67.09 kg | J700 rung (4T-4704 / 171-1704), pin 9U-9616 or 4T-4708 |
| J800 | 135-9800 | 202.4 lb / 91.81 kg | 6I-8804, pin 102-0101 |
The step from J600 to J700 is 17.9 lb / 8.12 kg. The step from J700 to J800 is 54.5 lb / 24.72 kg — three times the jump. That is the reason a 135-9700 offered as a "J800 replacement" is not a cheaper version of this tooth: it is a different casting on a different base, and it will not seat on a 6I-8804.
What else runs on the same base
| Point on the 6I-8804 base | Profile | Weight as published |
|---|---|---|
| 6I-8803 | loader casting | 104 kg (TRASTEEL) |
| 135-9800 | loader rock penetration HD | 100 kg (TRASTEEL) · 202.4 lb / 91.81 kg (Black Cat) |
| TSJ-800-LHD | loader profile, Cat alternative 135-9800 | 99 kg (TRASTEEL) |
| TSJ-800-PHD | excavator penetration | 77 kg (TRASTEEL) |
| TSJ-800-V | excavator tiger | 62 kg (TRASTEEL) |
On the same base, from 62 kg to 104 kg, all pinned the same way. If you are changing duty rather than replacing a worn part — say, moving a 385 from trenching to rock — the tooth is what changes, and the base, pin and retainer stay.
Loader duty, not excavator duty
A loader bucket takes the tip into a face as the machine drives forward; the load lands on the point and the underside. An excavator drags the tip through with breakout force on the top face. That is why the 135-9800 is a penetration profile with a heavy point and why the excavator profiles on the same base are lighter castings (TSJ-800-PHD 77 kg, TSJ-800-V 62 kg). Fitting a loader tooth to an excavator gets you a tooth that survives but digs differently — more breakout resistance, more fuel, and uneven wear that shows first at the base pocket.
What to send us
- The number on the old tooth — 135-9800 — plus the base number if the base is still in the bucket.
- The machine and strap thickness if the bucket has been rebuilt, or if you are not sure which rung the bucket takes.
- The weight of the casting you are replacing, in kilos. On this tooth the two publications differ by 8.19 kg each.
- Quantity and destination port — at 100 kg a piece, the piece count and the declared weight drive the freight note.
We supply the 135-9800 as an aftermarket casting with matched pins and retainers, and bases quoted on the same line. Nothing on this page is a genuine Caterpillar part; the numbers are used to cross-reference fitment.
FAQ
Q: What is the Cat 135-9800 tooth?
A: The loader rock penetration HD tooth on the J800 nose, the top rung of the J-series. 202.4 lb / 91.81 kg in Black Cat; 100 kg and 565 × 250 mm in the TRASTEEL row that carries 135-9800 as the Caterpillar alternative.
Q: What base and pin does it use?
A: The 6I-8804 weld-on base, pin 102-0101 (134-1808), retainer 101-2874 (134-1809). J700 hardware (9U-9616 or 4T-4708) and J600 hardware (6I-6608) do not fit.
Q: Will a 135-9700 fit where a 135-9800 came off?
A: No. 135-9700 is the J700 tooth at 147.9 lb / 67.09 kg on the J700 base — 54.5 lb / 24.72 kg lighter, and a different mounting. Same for 135-9600 at 130.0 lb / 58.97 kg (J600).
Q: Which machines run it?
A: Cat 994 wheel loader on a 4.00 in strap (Black Cat's J-series adapter table), and 385 / 390 class buckets in TRASTEEL's J800 two-strap row. We confirm base and tooth together against your measurements.
Sources
Tooth numbers, published weights and printed sizes: COHIDREX TRASTEEL TSJ catalogue (millimetres and kilograms) and Black Cat Wear Parts "Cat J Series Teeth & Adapters" catalogue 215.1025 (pounds, converted at 1 lb = 0.45359237 kg). Strap thickness and machine family: Black Cat's J-series adapter table. Both are third-party aftermarket catalogues; Caterpillar and the part numbers are the property of their respective owners.