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Rialto Toilet Repair Parts
By Kohler

Looking for replacement or repair parts for your Rialto toilet? We have just what you're looking for at PlumbingSupply.com®! Kohler toilets should last for many years, and with proper care they will. Replace your worn out flush valve or flapper with one from our selection below. Looking for additional Kohler parts? Click here.

Rialto toilet

Kohler Toilet Replacement Parts
The Rialto Series - Model #K3402 (-PB)

Rialto Series Toilet by Kohler

Item # Part # Description Price & Quantity
1 84503 Flush Valve and Cap/Plunger Repair Kit - Includes top assembly (42482), plunger assembly (42393), flush valve kit (83650) $57.47
2 *84499 1B1X Conversion Kit - Includes flush valve (83650), float ball (42753), float rods (42752 and 54642), nut (41633), top assembly (42482), plunger assembly (42393) & washers, taper washer (42470), screw (84441/31490), body (42377), float assembly (42381), locknut (42396), washer (42398), nut (42397), rim hose (42452) $96.78
1B1X 1B1X Plastic Fill Valve WITH Diverter Assembly - Includes Fill Tube, Diverter Assembly, Brass Float Rod, & Plastic Float Ball - LESS flush valve and flapper $69.75
1B1X OEM Fill Valve (ballcock) WITHOUT diverter assembly - includes plastic fill valve, clear vinyl outlet tube, slip joint nut and washer, friction ring, shank nut and washer, and float rod   - float ball sold separately
Replacement for fill valve and diverter from 84499 kit, no diverter needed
- does not include flush valve and flapper
$52.75
1B1X-WF "Will-Fit" Replacement Fill Valve ONLY
Includes: Plastic ballcock/fill valve, refill tube, brass float rod and mounting hardware (washers, nuts and screws) - LESS float ball & diverter assembly
Replacement for fill valve and diverter from 84499 kit, no diverter needed
- does not include flush valve and flapper
$45.77
2a 42452 Rim Hose For 1B1X Conversion Kit (shown above)
- Note: rim hose is included with 1B1X Conversion Kit
$3.99
  1B1X-BCRKC Complete Repair Kit for the 1B1X
Includes top assembly, large o-ring, plunger with washers and 3 screws
$12.61
3 **83650 Flush Valve Kit - Includes flush valve (83650), flapper (83064), washer (53410), screws (61052), mounting lugs (87377) - Compare old style and new style flush valves

Please Note: If your toilet has a triangle hole in the tank then you must also order the #GP83888 flush valve gasket to be used instead of the red flush valve washer that is included with the #K83650 flush valve. The GP83888 flush valve gasket must be installed with the larger flat surface facing toward the tank (opposite of the way the red gasket is shown on the flush valve.)
$42.58
4 K83064 Flapper (new style) $8.94
5 **83095 Flush Valve Kit - Includes flush valve (83095), flapper (83064), flush valve seal (83888)
Compare old style and new style flush valves
$25.43
6 42482 Top Assembly - Replaced by "will fit" top assembly $6.69
7 42393 Plunger Repair Kit - Replaced by "will fit"
Please Note: Large O-ring may fit tight and may need to be slightly stretched out using both hands (no tools) in order to be installed.
$6.98
Please note: The 42393 plunger repair kit has been discontinued. The "will fit" replacement plunger is completely round. If your original plunger has a flat edge like this, the replacement plunger will NOT fit with your existing top assembly. You will need to also purchase a replacement top assembly (42484) or our complete fill valve repair kit (1B1X-BCRKC above).
8 52048-0 Bolt Cap - White - click here for more color options $5.39
9 42388 Flapper - old style replaced by GP49114 - Replaced by "Will Fit" flapper $7.51
10 42377 Diverter Body for Fill Valve Discontinued
see below
10A 1114276 Diverter Assembly Complete - Includes #42377 diverter body, #31490 screw and #42381 float (screw and float available separately below) $16.71
11 42381 Float Assembly for Fill Valve $9.73
12 31490 Screw for Fill Valve Float Assembly $1.23
13 42506 Flush Valve Seal (replaced by #83888) $6.31
14 81609 Trip Lever - Chrome $63.69
81609 Trip Lever - Polished Brass $96.95
81609 Trip Lever - Brushed Nickel $97.95
81609 Trip Lever - Brushed Chrome $97.35
15 83888 Flush Valve Gasket $6.31
  WF 81609 "Will Fit" toilet trip lever (same as 81609) - Chrome $17.45
  Float Ball Plastic - "will-fit" - 4" x 5" - fits 1/4"-20 rods $2.94
  53410 Washer $3.10
  81180 /
K4530
Replacement Tank Lids - Click here for Kohler tank lid options
  GP83888 Flush valve gasket for toilets with triangle hole $6.31
** Please note: The *84499 1B1X Conversion Kit will replace the **83650 and **83095 flush valves when installed according to manufacturer's instructions

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Not sure which model toilet you have? Try looking under the toilet tank lid or inside of the toilet tank.

Click here for many colored seats that fit Kohler Rialto toilets.


Kohler Toilet Replacement Parts
The Rialto Series - Model #K3386 (-PB)

Rialto Series Toilet by Kohler

Item # Part # Description Price & Quantity
1 1068030 Fill Valve Assembly $34.77
2 84999 Seat Anchor Kit - tools, replacement anchors and instructions for replacing damaged seat anchors $43.88
HK36 Hardware Kit - for Kohler 1-pc Toilets using the "will fit" Slow Close, Easy Clean toilet seats below - Note: this kit may be needed when seat anchors are installed into the toilet and there is no room or access for the seat nuts/bolts included with seat - view HK36 installation instructions $4.92
3 85114 Trip Lever Assembly - Chrome $19.73
85114-VF Trip Lever - Polished Brass $68.95
85114-BN Trip Lever - Brushed Nickel $74.55
85114-SN Trip Lever - Vibrant Polished Nickel $74.29
4 1078578 Flush Valve Assembly - Includes flapper #1078577 (flapper replaced by GP84995), and Gasket #84676 $17.91
5 84302 Flush Valve Assembly - Includes flapper (84314), gasket (83996) $25.32
6A 1078577 Genuine Kohler Replacement Flapper - (replaced by GP84995) $12.95
2011 "Will-Fit" Replacement Flapper $11.51
6B 84314 Kohler Flapper - Replaced by #2012 $11.21
7 83996 Gasket $5.29
8 1013092-0 Bolt Caps - White - Click here for more color options $5.39
9 84676 Flush Valve GASKET for 1078578 Flush Valve (#4) $4.95
10 83143 Seal diaphragm for 84681 fill valve $3.90
11 1001958 Seal diaphragm for 1068030 and 10608033 fill valve $3.70
200SLOWT Premium quality toilet seat - Round Front - White
For additional colors, click here
$48.23
1200SLOWT Premium quality toilet seat - Elongated - White
For additional colors, click here
$52.84
  84252 Replacement Tank Lids
Click here for Kohler tank lid options

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Related Items & Information




Frequently Asked Questions

Q. "How do I adjust the water level for the 84499 conversion kit?"
A. As with any conversion or "will fit" replacement kit, you might need to make slight adjustments for the unit to function exactly like your original valve did. For the 84499 fill valve, you simply turn the adjustment screw counterclockwise to raise the water lever or clockwise to lower the water level. You may need to flush the toilet and keep turning either way until the water level in the tank matches the line on the flush valve overflow tube. If you're not sure where to find the adjustment screw or water level, view our handy parts diagram.

Have questions about toilet parts or toilet repair?

Toilet Repair Information & FAQs


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