Production run

Toro 21472 partsSerial 418272600–999999999

The last of the 21472's seven listings, all open, and the only one naming 147-8696 without 139-6556 — though 147-8696 is on the first three runs too.

At your boundary

What changes at the edges of this run

Discharge chutes

139-6556→147-8696at 418272600

This range names 147-8696 and not 139-6556. The listing directly below, consecutive with this one, names 139-6556 and not 147-8696.

A reader arriving with 139-6556 on the machine needs to know this is where Toro stops listing it — and that the number listed in its place is one Toro also lists for the three earliest runs of this model.

In detail

This production run

This is the last of the 21472's seven runs by serial number, and the discharge chute Toro lists for it is ASM-CHUTE, SD, 147-8696. Chute Assembly 139-6556, which is listed for all six runs below it, is not here.

The listing directly below is consecutive with this one, so the boundary sits at a serial we can name rather than inside a span of runs we have not read. That is a position in Toro's numbering and not a date; the pages carry none.

What the boundary does not mean is that 147-8696 is a newer part. Toro lists it for the three earliest runs of this model number, beside 139-6556; it is then absent from the listings for three runs, and it is present again here. Toro does state the relationship: requesting either chute as a product serves one page, for 147-8696, carrying the line “Replaces Product 139-6556.” That is Toro’s own word for it, and it sits oddly beside its own catalogue, which named the replacement first and went on naming the replaced number for six of the seven runs.

There is a practical consequence, and it is the useful half of this page. Toro does treat the SD chute as the current part — its product page says so. But Toro also lists 139-6556 for six of the seven runs, including three where it lists both. If you have 139-6556 on the machine, the number Toro points you at is 147-8696; what no page tells you is whether they fit the same way.

Absence is still only absence. This page does not say 139-6556 stops fitting.

Confirmed

What we have recorded for this serial range

We record the part categories this site covers. Toro’s own listing for this range carries other accessories besides.

Discharge chutes
ASM-CHUTE, SD 147-8696
Listed by Toro as ASM-CHUTE, SD on its official parts page for model 21472, serial range 418272600–999999999. It is the only chute on that listing.
Mower blades
22 Inch Recycler Blade 59534P
Listed by Toro as 22 Inch Recycler Blade on its official parts page for model 21472, serial range 418272600–999999999.
Engine maintenance kits
Briggs & Stratton EXi Engine Maintenance Kit Replacement 130-8148
Listed by Toro as Briggs & Stratton EXi Engine Maintenance Kit Replacement on its official parts page for model 21472, serial range 418272600–999999999.
Handles and controls
Toro Traction Assist Handle Kit for Recycler Lawn Mower 144-6377
Listed by Toro as Toro Traction Assist Handle Kit for Recycler Lawn Mower on its official parts page for model 21472, serial range 418272600–999999999.
Fuel treatment
Premium Fuel Treatment (0.5 oz.) 130-2393
Listed by Toro as Premium Fuel Treatment (0.5 oz.) on its official parts page for model 21472, serial range 418272600–999999999.
Fuel treatment
Premium Fuel Treatment (12 oz.) 131-6572
Listed by Toro as Premium Fuel Treatment (12 oz.) among the accessories on its parts page for model 21472, serial range 418272600–999999999.
Engine oil
SAE 30 4-Cycle Lawn Mower Engine Oil 32 oz 38903
Listed by Toro as SAE 30 4-Cycle Lawn Mower Engine Oil 32 oz among the accessories on its parts page for model 21472, serial range 418272600–999999999.
Engine oil
SAE 30 4-Cycle Summer Engine Oil 18 oz. 38916
Listed by Toro as SAE 30 4-Cycle Summer Engine Oil 18 oz. among the accessories on its parts page for model 21472, serial range 418272600–999999999.
Engine oil
Toro Full Synthetic 10W-30 Engine Oil (32 oz.) 138-6053
Listed by Toro as Toro Full Synthetic 10W-30 Engine Oil (32 oz.) among the accessories on its parts page for model 21472, serial range 418272600–999999999.
Striping kits
Striping Kit for Walk-Behind Mowers 20601
Listed by Toro as Striping Kit for Walk-Behind Mowers among the accessories on its parts page for model 21472, serial range 418272600–999999999.

Not listed here

Listed for a neighbouring run, but not this one

Absence from a parts listing is not a statement that a part does not fit. It is the manufacturer not saying.

139-6556 Not verified
Toro does not list chute 139-6556 on its parts page for model 21472, serial range 418272600–999999999; 147-8696 is still listed there.

If you are close to the edge

Serial numbers near a boundary

The lower edge is the sharp one and the run below it is consecutive. This range has no upper edge — it runs to the top of Toro’s published serials for the model — so nothing above it is unread.

Where Toro puts the serial plate

Other runs

Other production runs of the 21472

Toro publishes 7 parts listings for this model number. We have opened 7.

Method

How we established this

We opened all seven of Toro’s parts listings for model 21472, the count taken from the serial-range selector the listings carry, and compared the accessories they name within the part categories this site records. The pages also carry accessories this site holds no record for, so this is a comparison within the categories it records rather than an exhaustive diff of what they list. A part absent from a listing is recorded as unknown rather than incompatible.

The common mistake: Taking the parts listings as proof of which part superseded which. They give an order of serial ranges and nothing else. Toro states the supersession on the product pages instead, and on this model the number it calls the replacement is also in the first three listings.

Provenance

Sources

Last verified against these sources on August 20, 2026.

1
Parts — 22in Recycler All Wheel Drive, model 21472, serial range 418272600–999999999
The Toro Company · Primary source · Accessed August 20, 2026
The latest published range. Lists 147-8696, blade 59534P, kit 130-8148 and 144-6377. 139-6556 does not appear on this page.
2
Parts — 22in Recycler All Wheel Drive, model 21472, serial range 415400000–418272599
The Toro Company · Primary source · Accessed August 20, 2026
Toro’s official parts listing for this model and serial range, reached from the serial-range selector on the model’s other listings. Within the part categories this site records, its accessory list names 139-6556, and does not name 147-8696. The page carries further accessories this site holds no record for, among them engine oils, bags and fuel products other than 130-2393.
3
Parts — 22in Recycler All Wheel Drive, model 21472, serial range 400000000–408899999
The Toro Company · Primary source · Accessed August 20, 2026
Earliest published range. Lists blade 59534P, 130-8148, 144-6377 (Toro Traction Assist Handle Kit for Recycler Lawn Mower), and both 139-6556 (Chute Assembly) and 147-8696 (ASM-CHUTE, SD) together.
4
Parts — 22in Recycler All Wheel Drive, model 21472, serial range 408900000–410239153
The Toro Company · Primary source · Accessed August 20, 2026
Toro’s official parts listing for this model and serial range, reached from the serial-range selector on the model’s other listings. Within the part categories this site records, its accessory list names 139-6556, 147-8696. The page carries further accessories this site holds no record for, among them engine oils, bags and fuel products other than 130-2393.
5
Parts — 22in Recycler All Wheel Drive, model 21472, serial range 410239154–411763999
The Toro Company · Primary source · Accessed August 20, 2026
Toro’s official parts listing for this model and serial range, reached from the serial-range selector on the model’s other listings. Within the part categories this site records, its accessory list names 139-6556, 147-8696. The page carries further accessories this site holds no record for, among them engine oils, bags and fuel products other than 130-2393.
6
ASM-CHUTE, SD (Part # 147-8696) — reached from /product/139-6556
The Toro Company · Primary source · Accessed August 31, 2026
Requesting the 139-6556 product URL answers 200 with no redirect and serves a page titled ASM-CHUTE, SD under part number 147-8696, carrying the line “Replaces Product 139-6556.” It describes neither chute — no discharge type, no machine application. This is Toro stating the supersession between the two numbers directly, which seven pages on this site said it did not state. **Re-read 31 August 2026 and unchanged in every particular**, including the supersession line, the absence of any description and the serial field reading None-None.
7
ASM-CHUTE, SD (Part # 147-8696)
The Toro Company · Primary source · Accessed August 31, 2026
Toro’s product page for the SD chute, served directly at this number with no redirect. It carries the same line, “Replaces Product 139-6556.” It gives no discharge type and names no machine, so what the chute is and what it fits are still not published anywhere we have found — only the relationship between the two numbers is.