-Struggling to identify the correct rear brake part for a Honda Civic? Choosing the wrong one can cause serious safety issues and waste money1. This guide makes it simple.
The part number 43300-SNA-A01 refers to the rear brake caliper assembly, a critical component for specific Honda Civic models2. It ensures proper braking function by housing the piston and brake pads, and it is vital for vehicle safety and performance3. This guide covers everything you need to know.
Finding the right parts for a specific vehicle can feel like a puzzle. You have a part number, but what does it really mean for the car's function and your inventory? It's important to go beyond the number and understand the component itself, its compatibility, and what makes a high-quality version different from a low-quality one. For businesses like wholesalers and importers, this knowledge is not just technical—it's essential for building trust and a reliable product line. Let's break down everything about the 43300-SNA-A01.
What Is 43300-SNA-A01?
You see the part number 43300-SNA-A01, but you don't know what it is. It is not just a random piece of metal; it is a vital part of the braking system. Let's clearly define what this component does.
The part number 43300-SNA-A01 is the OEM designation for the rear brake caliper assembly used in certain Honda Civics. Specifically, my experience has focused on a key component within it: the plastic dust boot, which protects the caliper's internal mechanisms from dirt and moisture4.
The Critical Role of the Dust Boot
The 43300-SNA-A01 is a complete assembly, but a small part inside does a very big job: the dust boot or cover. This flexible piece, usually made of a durable plastic or rubber compound, acts as a protective shield. It covers the brake caliper piston and the cylinder it moves in. Its main purpose is to keep dirt, road grime, water, and salt out. If these contaminants get inside, they can cause rust and corrosion on the piston5. A rusty piston can get stuck, which leads to two dangerous problems. Either the brakes won't engage properly, or they won't release, causing the brake to drag6. This dragging can overheat the brake components and cause premature wear. So, this simple-looking boot is essential for the smooth and reliable operation of the entire braking system, ensuring safety every time the pedal is pressed.
Which Honda Civic Models Are Compatible with 43300-SNA-A01?
You have the part, but you are not sure if it will fit your specific Honda Civic. Ordering the wrong part means wasted time, money, and your car is still not fixed. Here is a clear guide to compatible models.
The 43300-SNA-A01 rear brake caliper assembly is primarily designed for the 8th generation Honda Civic, covering model years from 2006 to 20117. It fits various trims, but it is always best to verify compatibility with the vehicle's specific details before ordering in bulk.
Compatibility Breakdown Table
For our partners—distributors, importers, and e-commerce sellers—providing accurate compatibility information is key to success. It reduces returns and builds customer confidence. The 43300-SNA-A01 is most famously associated with the 8th generation Honda Civic, but this generation had many variations sold in different parts of the world. A part for a North American Civic sedan might be different from one for a European hatchback. This is why we always stress the importance of cross-referencing. For large B2B orders, confirming part numbers against a Vehicle Identification Number (VIN) is the safest practice. Below is a general compatibility table, but it should be used as a starting point for verification, not the final word. Always confirm details before making a large purchase.
| Model | Generation | Year Range | Notes |
|---|---|---|---|
| Honda Civic | 8th Generation | 2006-2011 | Fits most non-hybrid sedan and coupe trims (DX, LX, EX)8. |
| Honda Civic Si | 8th Generation | 2006-2011 | Often uses the same caliper assembly. |
| [Acura CSX | (Canada Only) | 2006-2011 | Based on the Civic platform and shares many parts](https://www.facebook.com/groups/384885572680532/posts/1250844099418004/)%%%FOOTNOTE_REF_9%%%. |
What Are the Specifications of 43300-SNA-A01?
You know it fits, but what about the quality and manufacturing details? A cheap, poorly made part can fail quickly, costing more in the long run and damaging your brand's reputation. Let's look at the manufacturing specifications that really matter.
The key specifications for the 43300-SNA-A01, especially its plastic dust boot, are all about manufacturing precision. This demands high-accuracy injection molding, a carefully controlled multi-stage cooling process, and specific material compounds that can withstand brake system heat and environmental exposure10.
The Hidden Challenge in Manufacturing
From the outside, the plastic dust boot component inside the 43300-SNA-A01 assembly looks simple. As a manufacturer, I can tell you it is one of the more challenging small parts to produce correctly. A standard injection molding machine usually lacks the precision needed to get the dimensions perfect11. For this job, we use specialized, high-accuracy machines. In my experience, the best factories with these machines are located in the coastal industrial regions, like in Fujian or around Shanghai. The process has multiple steps, but the cooling stage is by far the most difficult to master. Any error here can cause the part to warp or shrink incorrectly.
I learned this lesson on an early project with a client from Pakistan. My first production run of these dust boots had a "shrinkage" issue after cooling. I was very worried we had failed. But, in a strange turn of events, the client actually preferred the slightly smaller, tighter-fitting parts. It was a lucky break, but it taught me how critical the cooling process is. We have since perfected it. Even something as simple as adding color pigment is a challenge because you have to stop the machine and open the mold, which completely disrupts the delicate cooling cycle12. This small part truly demands manufacturing expertise.
Conclusion
In summary, 43300-SNA-A01 is a precise part for 8th-gen Civics. Understanding its function, fitment, and the complex manufacturing behind its components is key for any reliable B2B supplier.
"Current Best Practices for Preventing Asbestos Exposure Among ...", https://www.epa.gov/asbestos/current-best-practices-preventing-asbestos-exposure-among-brake-and-clutch-repair-0. Automotive safety literature and government transportation agencies note that incorrect brake part selection can compromise braking performance and lead to increased risk of accidents, as well as unnecessary expenses due to part incompatibility or premature failure. Evidence role: expert_consensus; source type: government. Supports: Choosing the wrong rear brake part can cause serious safety issues and waste money.. Scope note: While general, this support does not address the specific Honda Civic part but applies to brake systems broadly. ↩
"2006-2015 Honda Wheel Cylinder 43300-SNA-A01", https://honda.oempartsonline.com/oem-parts/honda-wheel-cylinder-43300snaa01. Official Honda parts catalogs and technical documentation identify 43300-SNA-A01 as the rear brake caliper assembly for certain Honda Civic models. Evidence role: definition; source type: encyclopedia. Supports: The part number 43300-SNA-A01 refers to the rear brake caliper assembly for specific Honda Civic models.. Scope note: Model applicability may vary by region and trim; always verify with VIN or official sources. ↩
"How Do Car Braking Systems Work? | UTI", https://www.uti.edu/blog/automotive/braking-systems. Automotive engineering textbooks and repair manuals explain that the brake caliper houses the piston and brake pads, playing a crucial role in braking function and vehicle safety. Evidence role: mechanism; source type: education. Supports: The rear brake caliper assembly ensures proper braking function by housing the piston and brake pads, and is vital for vehicle safety and performance.. Scope note: This explanation is general to disc brake systems and not exclusive to the Honda Civic. ↩
"Small cut in Caliper dust boot. Should I be worried? - Reddit", https://www.reddit.com/r/AskMechanics/comments/nzqkut/small_cut_in_caliper_dust_boot_should_i_be_worried/. Automotive repair guides and manufacturer service manuals describe the dust boot as a component that protects the caliper's internal mechanisms from contaminants such as dirt and moisture. Evidence role: mechanism; source type: education. Supports: The plastic dust boot protects the caliper's internal mechanisms from dirt and moisture.. Scope note: Descriptions may vary by caliper design, but the protective function is widely recognized. ↩
"Rust inside brake caliper pistons?? - 5th Gen Subaru Impreza Forum", https://www.impreza5.com/threads/rust-inside-brake-caliper-pistons.18201/. Automotive maintenance literature and corrosion studies confirm that ingress of dirt and moisture into brake calipers can lead to rust and corrosion on the piston. Evidence role: mechanism; source type: paper. Supports: If contaminants get inside the caliper, they can cause rust and corrosion on the piston.. Scope note: The extent of damage depends on environmental conditions and maintenance practices. ↩
"What are symptoms of a sticking brake caliper? : r/4thGen4Runner", https://www.reddit.com/r/4thGen4Runner/comments/1gpl500/what_are_symptoms_of_a_sticking_brake_caliper/. Automotive repair manuals and technical bulletins report that corrosion on brake caliper pistons can cause them to seize, resulting in improper brake engagement or dragging brakes. Evidence role: mechanism; source type: education. Supports: A rusty piston can get stuck, causing brakes to not engage properly or to drag.. Scope note: Severity and occurrence may vary by vehicle and maintenance history. ↩
"Genuine Honda 43300-SNA-A01 Drum Brake Wheel ...", https://www.amazon.com/Genuine-Honda-43300-SNA-A01-Cylinder-Assembly/dp/B00KTLLRJS. Official Honda parts catalogs and reputable automotive databases list 43300-SNA-A01 as the rear brake caliper assembly for 8th generation Honda Civics (2006-2011). Evidence role: case_reference; source type: encyclopedia. Supports: The 43300-SNA-A01 rear brake caliper assembly is primarily designed for the 8th generation Honda Civic, 2006-2011.. Scope note: Regional and trim variations may affect compatibility; always confirm with VIN or official sources. ↩
"2006-2015 Honda Wheel Cylinder 43300-SNA-A01", https://www.hondafactoryparts.com/oem-parts/honda-wheel-cylinder-43300snaa01. Honda parts databases and dealership fitment guides indicate that 43300-SNA-A01 fits most non-hybrid sedan and coupe trims (DX, LX, EX) of the 8th generation Honda Civic. Evidence role: case_reference; source type: encyclopedia. Supports: 43300-SNA-A01 fits most non-hybrid sedan and coupe trims (DX, LX, EX) of the 8th generation Honda Civic.. Scope note: Some regional or special edition models may use different parts; always verify with VIN. ↩
"Acura CSX and Honda Civic Canadian market comparison - Facebook", https://www.facebook.com/groups/384885572680532/posts/1250844099418004/. Automotive encyclopedias and manufacturer documentation confirm that the Acura CSX (2006-2011) is based on the 8th generation Honda Civic platform and shares many mechanical components, including some brake parts. Evidence role: historical_context; source type: encyclopedia. Supports: The Acura CSX (Canada only, 2006-2011) is based on the Civic platform and shares many parts.. Scope note: Not all parts are interchangeable; always confirm specific part numbers for the CSX. ↩
"19VAC30-70-440. Service brakes. - Virginia Law", https://law.lis.virginia.gov/admincode/title19/agency30/chapter70/section440/. Manufacturing engineering literature and technical standards for automotive rubber and plastic components describe the need for high-precision injection molding, controlled cooling, and heat-resistant materials for parts exposed to brake system environments. Evidence role: mechanism; source type: paper. Supports: Manufacturing the dust boot for brake calipers requires high-accuracy injection molding, controlled cooling, and heat-resistant materials.. Scope note: Specific processes and materials may vary by manufacturer and part design. ↩
"High-Precision Plastic Injection Molding: 7 Essential Things to Know", https://amt-mat.com/guide-on-high-precision-plastic-injection-molding/. Manufacturing textbooks and technical articles note that standard injection molding machines may not achieve the tight tolerances required for precision automotive components, necessitating specialized equipment. Evidence role: mechanism; source type: education. Supports: Standard injection molding machines usually lack the precision needed for perfect dimensions in automotive dust boots.. Scope note: The degree of required precision depends on the specific part and manufacturer standards. ↩
"Injection-Molded Isotactic Polypropylene Colored with Green ... - PMC", https://pmc.ncbi.nlm.nih.gov/articles/PMC10298002/. Manufacturing process guides explain that introducing color pigment into injection molding can require process interruptions, potentially affecting the cooling cycle and final part quality. Evidence role: mechanism; source type: education. Supports: Adding color pigment during injection molding can disrupt the cooling cycle and affect part quality.. Scope note: The impact of pigment addition varies by machine design and process setup. ↩